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diff --git a/heartbeat/podman-etcd b/heartbeat/podman-etcd
index 9fb419a64..dcf4ccf2e 100755
--- a/heartbeat/podman-etcd
+++ b/heartbeat/podman-etcd
@@ -1,1414 +1,1414 @@
#!/bin/sh
#
# The podman etcd HA resource agent creates and launches a etcd podman
# container based off a supplied podman image. Containers managed by
# this agent are both created and removed upon the agent's start and
# stop actions.
#
# Based on the podman resource agent.
#
# Copyright (c) 2014 David Vossel <davidvossel@gmail.com>
# Michele Baldessari <michele@acksyn.org>
# All Rights Reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of version 2 of the GNU General Public License as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it would be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
#
# Further, this software is distributed without any warranty that it is
# free of the rightful claim of any third person regarding infringement
# or the like. Any license provided herein, whether implied or
# otherwise, applies only to this software file. Patent licenses, if
# any, provided herein do not apply to combinations of this program with
# other software, or any other product whatsoever.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write the Free Software Foundation,
# Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
#
#######################################################################
# Initialization:
: ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/lib/heartbeat}
. ${OCF_FUNCTIONS_DIR}/ocf-shellfuncs
# Parameter defaults
-OCF_RESKEY_image_default="quay.io/openshift-release-dev/ocp-v4.0-art-dev@sha256:e213f49e8500d14652a0f4546fd43e11164cc9cc5d575a208634c268f150c3ea"
+OCF_RESKEY_image_default=$(jq -r '.spec.containers[] | select( .name=="etcdctl").image' /etc/kubernetes/manifests/etcd-pod.yaml)
OCF_RESKEY_name_default="etcd"
OCF_RESKEY_nic_default="br-ex"
OCF_RESKEY_authfile_default="/run/resource-agents/pull-secret"
OCF_RESKEY_allow_pull_default="1"
OCF_RESKEY_reuse_default="0"
: ${OCF_RESKEY_image=${OCF_RESKEY_image_default}}
: ${OCF_RESKEY_name=${OCF_RESKEY_name_default}}
: ${OCF_RESKEY_nic=${OCF_RESKEY_nic_default}}
: ${OCF_RESKEY_authfile=${OCF_RESKEY_authfile_default}}
: ${OCF_RESKEY_allow_pull=${OCF_RESKEY_allow_pull_default}}
: ${OCF_RESKEY_reuse=${OCF_RESKEY_reuse_default}}
#######################################################################
meta_data()
{
cat <<END
<?xml version="1.0"?>
<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
<resource-agent name="podman-etcd" version="1.0">
<version>1.0</version>
<longdesc lang="en">
The podman-etcd HA resource agent creates and launches a etcd podman
container based off a supplied podman image. Containers managed by
this agent are both created and removed upon the agent's start and
stop actions.
</longdesc>
<shortdesc lang="en">Podman etcd container resource agent.</shortdesc>
<parameters>
<parameter name="image" required="0" unique="0">
<longdesc lang="en">
The podman image to base this container off of.
</longdesc>
<shortdesc lang="en">podman image</shortdesc>
<content type="string" default="${OCF_RESKEY_image_default}"/>
</parameter>
<parameter name="name" required="0" unique="0">
<longdesc lang="en">
The name to give the created container. By default this will
be that resource's instance name.
</longdesc>
<shortdesc lang="en">podman container name</shortdesc>
<content type="string" default="${OCF_RESKEY_name_default}"/>
</parameter>
<parameter name="node_ip_map" unique="0" required="1">
<longdesc lang="en">
A mapping of node names to IPs.
This takes the form of:
n1:ip1;n2:ip2
where the etcd container on n1 would have IP ip1
</longdesc>
<shortdesc lang="en">Container node name to IP mapping</shortdesc>
<content type="string"/>
</parameter>
<parameter name="host_map" unique="0">
<longdesc lang="en">
A mapping of host to node names used for certificate file names.
This takes the form of:
host1:alt1;host2:alt2
where the host1 would be alt1 for certificate files.
</longdesc>
<shortdesc lang="en">Pacemaker to etcd name mapping</shortdesc>
<content type="string"/>
</parameter>
<parameter name="nic" unique="0">
<longdesc lang="en">
Network interface to lookup interface for host.
</longdesc>
<shortdesc lang="en">Network interface</shortdesc>
<content type="string" default="${OCF_RESKEY_nic_default}"/>
</parameter>
<parameter name="authfile" required="0" unique="0">
<longdesc lang="en">
Path of the authentication file.
The file is created by podman login.
</longdesc>
<shortdesc lang="en">Path of the authentication file </shortdesc>
<content type="string" default="${OCF_RESKEY_authfile_default}"/>
</parameter>
<parameter name="allow_pull" unique="0">
<longdesc lang="en">
Allow the image to be pulled from the configured podman registry when
the image does not exist locally. NOTE, this can drastically increase
the time required to start the container if the image repository is
pulled over the network.
</longdesc>
<shortdesc lang="en">Allow pulling non-local images</shortdesc>
<content type="boolean" default="${OCF_RESKEY_allow_pull_default}"/>
</parameter>
<parameter name="run_opts" required="0" unique="0">
<longdesc lang="en">
Add options to be appended to the 'podman run' command which is used
when creating the container during the start action. This option allows
users to do things such as setting a custom entry point and injecting
environment variables into the newly created container. Note the '-d'
option is supplied regardless of this value to force containers to run
in the background.
NOTE: Do not explicitly specify the --name argument in the run_opts. This
agent will set --name using either the resource's instance or the name
provided in the 'name' argument of this agent.
</longdesc>
<shortdesc lang="en">run options</shortdesc>
<content type="string"/>
</parameter>
<parameter name="run_cmd" required="0" unique="0">
<longdesc lang="en">
Specify a command to launch within the container once
it has initialized.
</longdesc>
<shortdesc lang="en">run command</shortdesc>
<content type="string"/>
</parameter>
<parameter name="run_cmd_opts" required="0" unique="0">
<longdesc lang="en">
Options to be added to the 'run_cmd'.
</longdesc>
<shortdesc lang="en">run command options</shortdesc>
<content type="string"/>
</parameter>
<parameter name="mount_points" required="0" unique="0">
<longdesc lang="en">
A comma separated list of directories that the container is expecting to use.
The agent will ensure they exist by running 'mkdir -p'
</longdesc>
<shortdesc lang="en">Required mount points</shortdesc>
<content type="string"/>
</parameter>
<parameter name="monitor_cmd" required="0" unique="0">
<longdesc lang="en">
Specify the full path of a command to launch within the container to check
the health of the container. This command must return 0 to indicate that
the container is healthy. A non-zero return code will indicate that the
container has failed and should be recovered.
Note: Using this method for monitoring processes inside a container
is not recommended, as containerd tries to track processes running
inside the container and does not deal well with many short-lived
processes being spawned. Ensure that your container monitors its
own processes and terminates on fatal error rather than invoking
a command from the outside.
</longdesc>
<shortdesc lang="en">monitor command</shortdesc>
<content type="string"/>
</parameter>
<parameter name="force_kill" required="0" unique="0">
<longdesc lang="en">
Kill a container immediately rather than waiting for it to gracefully
shutdown
</longdesc>
<shortdesc lang="en">force kill</shortdesc>
<content type="boolean"/>
</parameter>
<parameter name="reuse" required="0" unique="0">
<longdesc lang="en">
Allow the container to be reused once it is stopped. By default,
containers get removed once they are stopped. Enable this option
to have the particular one persist when this happens.
</longdesc>
<shortdesc lang="en">reuse container</shortdesc>
<content type="boolean" default="${OCF_RESKEY_reuse_default}"/>
</parameter>
<parameter name="drop_in_dependency" required="0" unique="0">
<longdesc lang="en">
Use transient drop-in files to add extra dependencies to the systemd
scopes associated to the container. During reboot, this prevents systemd
to stop the container before pacemaker.
</longdesc>
<shortdesc lang="en">drop-in dependency</shortdesc>
<content type="boolean"/>
</parameter>
</parameters>
<actions>
<action name="start" timeout="600s" />
<action name="stop" timeout="90s" />
<action name="monitor" timeout="25s" interval="30s" depth="0" />
<action name="promote" timeout="300s" />
<action name="demote" timeout="120s" />
<action name="meta-data" timeout="5s" />
<action name="validate-all" timeout="30s" />
</actions>
</resource-agent>
END
}
#######################################################################
REQUIRE_IMAGE_PULL=0
podman_usage()
{
cat <<END
usage: $0 {start|stop|monitor|promote|demote|validate-all|meta-data}
Expects to have a fully populated OCF RA-compliant environment set.
END
}
monitor_cmd_exec()
{
local rc=$OCF_SUCCESS
local out
out=$(podman exec ${CONTAINER} $OCF_RESKEY_monitor_cmd 2>&1)
rc=$?
# 125: no container with name or ID ${CONTAINER} found
# 126: container state improper (not running)
# 127: any other error
# 255: podman 2+: container not running
case "$rc" in
125|126|255)
rc=$OCF_NOT_RUNNING
;;
0)
ocf_log debug "monitor cmd passed: exit code = $rc"
;;
*)
ocf_exit_reason "monitor cmd failed (rc=$rc), output: $out"
rc=$OCF_ERR_GENERIC
;;
esac
return $rc
}
container_exists()
{
local rc
local out
out=$(podman exec ${CONTAINER} $OCF_RESKEY_monitor_cmd 2>&1)
rc=$?
# 125: no container with name or ID ${CONTAINER} found
if [ $rc -ne 125 ]; then
return 0
fi
return 1
}
remove_container()
{
local rc
local execids
if ocf_is_true "$OCF_RESKEY_reuse"; then
# never remove the container if we have reuse enabled.
return 0
fi
container_exists
if [ $? -ne 0 ]; then
# don't attempt to remove a container that doesn't exist
return 0
fi
ocf_log notice "Cleaning up inactive container, ${CONTAINER}."
ocf_run podman rm -v $CONTAINER
rc=$?
if [ $rc -ne 0 ]; then
if [ $rc -eq 2 ]; then
if podman inspect --format '{{.State.Status}}' $CONTAINER | grep -wq "stopping"; then
ocf_log err "Inactive container ${CONTAINER} is stuck in 'stopping' state. Force-remove it."
ocf_run podman rm -f $CONTAINER
rc=$?
fi
fi
# due to a podman bug (rhbz#1841485), sometimes a stopped
# container can still be associated with Exec sessions, in
# which case the "podman rm" has to be forced
execids=$(podman inspect $CONTAINER --format '{{len .ExecIDs}}')
if [ "$execids" -ne "0" ]; then
ocf_log warn "Inactive container ${CONTAINER} has lingering exec sessions. Force-remove it."
ocf_run podman rm -f $CONTAINER
rc=$?
fi
fi
return $rc
}
podman_simple_status()
{
local rc
# simple status is implemented via podman exec
# everything besides success is considered "not running"
monitor_cmd_exec
rc=$?
if [ $rc -ne $OCF_SUCCESS ]; then
rc=$OCF_NOT_RUNNING;
fi
return $rc
}
podman_monitor()
{
# We rely on running podman exec to monitor the container
# state because that command seems to be less prone to
# performance issue under IO load.
#
# For probes to work, we expect cmd_exec to be able to report
# when a container is not running. Here, we're not interested
# in distinguishing whether it's stopped or non existing
# (there's function container_exists for that)
monitor_cmd_exec
rc=$?
if [ $rc -ne 0 ]; then
return $rc
fi
# Failing to cache data and check member list should not cause the
# monitor operation to fail.
# TODO: move this inside check_peers where we alredy query member list json
cache_member_id
check_peers
rc=$?
if [ $rc -ne $OCF_SUCCESS ]; then
return $OCF_ERR_GENERIC
fi
# TODO: Etcd data comes from the disk, so if it is not available is a fatal failure
cache_etcd_data
return $?
}
podman_create_mounts() {
oldIFS="$IFS"
IFS=","
for directory in $OCF_RESKEY_mount_points; do
mkdir -p "$directory"
done
IFS="$oldIFS"
}
podman_container_id()
{
# Retrieve the container ID by doing a "podman ps" rather than
# a "podman inspect", because the latter has performance issues
# under IO load.
# We could have run "podman start $CONTAINER" to get the ID back
# but if the container is stopped, the command will return a
# name instead of a container ID. This would break us.
podman ps --no-trunc --format '{{.ID}} {{.Names}}' | grep -F -w -m1 "$CONTAINER" | cut -d' ' -f1
}
create_transient_drop_in_dependency()
{
local cid=$1
local rc=$OCF_SUCCESS
if [ -z "$cid" ]; then
ocf_exit_reason "Container ID not found for \"$CONTAINER\". Not creating drop-in dependency"
return $OCF_ERR_GENERIC
fi
ocf_log info "Creating drop-in dependency for \"$CONTAINER\" ($cid)"
for scope in "libpod-$cid.scope.d" "libpod-conmon-$cid.scope.d"; do
if [ $rc -eq $OCF_SUCCESS ] && [ ! -d /run/systemd/transient/"$scope" ]; then
mkdir -p /run/systemd/transient/"$scope" && \
printf "[Unit]\nBefore=pacemaker.service" > /run/systemd/transient/"$scope"/dep.conf && \
chmod ago+r /run/systemd/transient/"$scope" /run/systemd/transient/"$scope"/dep.conf
rc=$?
fi
done
if [ $rc -ne $OCF_SUCCESS ]; then
ocf_log error "Could not create drop-in dependency for \"$CONTAINER\" ($cid)"
else
systemctl daemon-reload
rc=$?
if [ $rc -ne $OCF_SUCCESS ]; then
ocf_log error "Could not refresh service definition after creating drop-in for \"$CONTAINER\""
fi
fi
return $rc
}
run_new_container()
{
local opts=$1
local image=$2
local cmd=$3
local rc
ocf_log info "running container $CONTAINER for the first time"
out=$(podman run $opts $image $cmd 2>&1)
rc=$?
if [ -n "$out" ]; then
out="$(echo "$out" | tr -s ' \t\r\n' ' ')"
if [ $rc -eq 0 ]; then
ocf_log info "$out"
else
ocf_log err "$out"
fi
fi
if [ $rc -eq 125 ]; then
# If an internal podman error occurred, it might be because
# the internal storage layer still references an old container
# with the same name, even though podman itself thinks there
# is no such container. If so, purge the storage layer to try
# to clean the corruption and try again.
if echo "$out" | grep -q "unknown.*flag"; then
ocf_exit_reason "$out"
return $rc
fi
ocf_log warn "Internal podman error while creating new container $CONTAINER. Retrying."
ocf_run podman rm --storage $CONTAINER
ocf_run podman run $opts $image $cmd
rc=$?
elif [ $rc -eq 127 ]; then
# rhbz#1972209: podman 3.0.x seems to be hit by a race
# where the cgroup is not yet set up properly when the OCI
# runtime configures the container. If that happens, recreate
# the container as long as we get the same error code or
# until start timeout preempts us.
while [ $rc -eq 127 ] && (echo "$out" | grep -q "cgroup.*scope not found") ; do
ocf_log warn "Internal podman error while assigning cgroup. Retrying."
# Arbitrary sleep to prevent consuming all CPU while looping
sleep 1
podman rm -f "$CONTAINER"
out=$(podman run $opts $image $cmd 2>&1)
rc=$?
done
# Log the created container ID if it succeeded
if [ $rc -eq 0 ]; then
ocf_log info "$out"
fi
fi
return $rc
}
get_hostname()
{
# TODO: consider using ocf_local_nodename instead
local name=$(hostname)
if [ -z "$OCF_RESKEY_host_map" ]; then
echo $name
else
echo "$OCF_RESKEY_host_map" | tr ';' '\n' | tr -d ' ' | sed 's/:/ /' | awk -F' ' '$1=="'"$name"'" {print $2;exit}'
fi
}
get_node_ip() {
echo "$(ip -brief addr show $OCF_RESKEY_nic | awk '{gsub("/.*", "", $3); print $3}')"
}
prepare_env() {
local name ip standalone_node
local nodename=$(ocf_local_nodename)
THIS_NODE_HOSTNAME="$(get_hostname)"
THIS_NODE_IP="$(get_node_ip)"
if is_force_new_cluster; then
ETCD_INITIAL_CLUSTER_STATE="new"
ALL_ETCD_ENDPOINTS="https://$THIS_NODE_IP:2379"
# TODO: double check if it is always hostname, or use ocf_local_nodename instead
ETCD_INITIAL_CLUSTER="$THIS_NODE_HOSTNAME=https://$THIS_NODE_IP:2380"
else
for node in $(echo "$OCF_RESKEY_node_ip_map" | sed "s/\s//g;s/;/ /g"); do
name=$(echo "$node" | awk -F":" '{print $1}')
ip=$(echo "$node" | awk -F":" '{print $2}')
if [ -z "$name" ] || [ -z "$ip" ]; then
ocf_exit_reason "name or ip missing for 1 or more nodes"
exit $OCF_ERR_CONFIGURED
fi
crm_attribute --type nodes --node $name --name "ip" --update "$ip"
[ -z "$ALL_ETCD_ENDPOINTS" ] && ALL_ETCD_ENDPOINTS="https://$ip:2379" || ALL_ETCD_ENDPOINTS="$ALL_ETCD_ENDPOINTS,https://$ip:2379"
[ -z "$ETCD_INITIAL_CLUSTER" ] && ETCD_INITIAL_CLUSTER="$name=https://$ip:2380" || ETCD_INITIAL_CLUSTER="$ETCD_INITIAL_CLUSTER,$name=https://$ip:2380"
done
fi
ETCDCTL_API="3"
ETCD_CIPHER_SUITES="TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256"
ETCD_DATA_DIR="/var/lib/etcd"
ETCD_ELECTION_TIMEOUT="1000"
ETCD_ENABLE_PPROF="true"
ETCD_EXPERIMENTAL_MAX_LEARNERS="3"
ETCD_EXPERIMENTAL_WARNING_APPLY_DURATION=200ms
ETCD_EXPERIMENTAL_WATCH_PROGRESS_NOTIFY_INTERVAL=5s
ETCD_HEARTBEAT_INTERVAL="100"
ETCD_INITIAL_CLUSTER_STATE=${ETCD_INITIAL_CLUSTER_STATE:-"existing"}
ETCD_QUOTA_BACKEND_BYTES="8589934592"
ETCD_SOCKET_REUSE_ADDRESS="true"
SERVER_CACERT="/etc/kubernetes/static-pod-resources/etcd-certs/configmaps/etcd-all-bundles/server-ca-bundle.crt"
ETCD_PEER_CERT="/etc/kubernetes/static-pod-resources/etcd-certs/secrets/etcd-all-certs/etcd-peer-${THIS_NODE_HOSTNAME}.crt"
ETCD_PEER_KEY="/etc/kubernetes/static-pod-resources/etcd-certs/secrets/etcd-all-certs/etcd-peer-${THIS_NODE_HOSTNAME}.key"
LISTEN_CLIENT_URLS="0.0.0.0"
LISTEN_PEER_URLS="0.0.0.0"
LISTEN_METRICS_URLS="0.0.0.0"
if is_learner; then
LISTEN_CLIENT_URLS="$THIS_NODE_IP"
LISTEN_PEER_URLS="$THIS_NODE_IP"
LISTEN_METRICS_URLS="$THIS_NODE_IP"
fi
}
archive_data_folder()
{
# TODO: use etcd snapshots
local dest_dir_name="members-snapshot-$(date +%Y%M%d%H%M%S)"
local data_dir="/var/lib/etcd/member"
if [ ! -d $data_dir ]; then
ocf_log info "no data dir to backup"
return $OCF_SUCCESS
fi
ocf_log info "backing up $data_dir under $HA_RSCTMP/$dest_dir_name"
mv $data_dir $HA_RSCTMP/$dest_dir_name
sync
}
podman_start()
{
local cid
local rc
local etcd_pod_wait_timeout_sec=$((10 * 60))
local etcd_pod_poll_interval_sec=10
local etcd_pod_poll_retries=$((etcd_pod_wait_timeout_sec/etcd_pod_poll_interval_sec))
if is_standalone; then
if is_learner; then
ocf_exit_reason "$(ocf_local_nodename) set both as learner and standalone"
return $OCF_ERR_CONFIGURED
fi
fi
# ensure the etcd pod is not running before starting the container
ocf_log info "Ensure etcd pod is not running (retries:$etcd_pod_poll_retries, interval:$etcd_pod_poll_interval_sec)"
for try in $(seq $etcd_pod_poll_retries); do
etcd_pod_container_exists
if [ $? -eq 0 ]; then
ocf_log info "Etcd pod running: retry in $etcd_pod_poll_interval_sec seconds."
sleep $etcd_pod_poll_interval_sec
fi
done
etcd_pod_container_exists
if [ $? -eq 0 ]; then
ocf_exit_reason "Etcd pod is still running after $etcd_pod_wait_timeout_sec seconds."
return $OCF_ERR_GENERIC
fi
podman_create_mounts
local run_opts="-d --name=${CONTAINER}"
# check to see if the container has already started
podman_simple_status
if [ $? -eq $OCF_SUCCESS ]; then
return $OCF_SUCCESS
fi
local peer_node=$(get_peer_node_name)
if is_standalone $peer_node; then
local nodename=$(ocf_local_nodename)
local wait_timeout_sec=$((2*60))
local poll_interval_sec=5
local retries=$(( wait_timeout_sec / poll_interval_sec ))
ocf_log info "wait for the leader node to add $nodename as learner (timeout: $wait_timeout_sec seconds)"
for try in $(seq $retries); do
learner_node=$(get_learner_node)
if [ "$nodename" != "$learner_node" ]; then
ocf_log info "$learner_node is not in the member list yet. Retry in $poll_interval_sec seconds."
sleep $poll_interval_sec
continue
fi
ocf_log info "learner node $learner_node in the member list"
break
done
if [ "$nodename" != "$(get_learner_node)" ]; then
ocf_log error "wait for $nodename to be in the member list timed out"
return $OCF_ERR_GENERIC
fi
fi
prepare_env
# add etcd-specific opts
run_opts="$run_opts \
--network=host \
-v /etc/kubernetes:/etc/kubernetes \
-v /var/lib/etcd:/var/lib/etcd \
--env ALL_ETCD_ENDPOINTS=$ALL_ETCD_ENDPOINTS \
--env ETCD_CIPHER_SUITES=$ETCD_CIPHER_SUITES \
--env ETCD_DATA_DIR=$ETCD_DATA_DIR \
--env ETCD_ELECTION_TIMEOUT=$ETCD_ELECTION_TIMEOUT \
--env ETCD_ENABLE_PPROF=$ETCD_ENABLE_PPROF \
--env ETCD_EXPERIMENTAL_MAX_LEARNERS=$ETCD_EXPERIMENTAL_MAX_LEARNERS \
--env ETCD_EXPERIMENTAL_WARNING_APPLY_DURATION=$ETCD_EXPERIMENTAL_WARNING_APPLY_DURATION \
--env ETCD_EXPERIMENTAL_WATCH_PROGRESS_NOTIFY_INTERVAL=$ETCD_EXPERIMENTAL_WATCH_PROGRESS_NOTIFY_INTERVAL \
--env ETCD_HEARTBEAT_INTERVAL=$ETCD_HEARTBEAT_INTERVAL \
--env ETCD_INITIAL_CLUSTER=$ETCD_INITIAL_CLUSTER \
--env ETCD_INITIAL_CLUSTER_STATE=$ETCD_INITIAL_CLUSTER_STATE \
--env ETCD_NAME=$THIS_NODE_HOSTNAME \
--env ETCD_QUOTA_BACKEND_BYTES=$ETCD_QUOTA_BACKEND_BYTES \
--env ETCD_SOCKET_REUSE_ADDRESS=$ETCD_SOCKET_REUSE_ADDRESS \
--env ETCDCTL_API=$ETCDCTL_API \
--env ETCDCTL_CACERT=$SERVER_CACERT \
--env ETCDCTL_CERT=$ETCD_PEER_CERT \
--env ETCDCTL_KEY=$ETCD_PEER_KEY \
--authfile=$OCF_RESKEY_authfile \
--security-opt label=disable"
if [ -n "$OCF_RESKEY_run_opts" ]; then
run_opts="$run_opts $OCF_RESKEY_run_opts"
fi
OCF_RESKEY_run_cmd="$OCF_RESKEY_run_cmd --logger=zap \
--log-level=info \
--experimental-initial-corrupt-check=true \
--snapshot-count=10000 \
--initial-advertise-peer-urls=https://${THIS_NODE_IP}:2380 \
--cert-file=/etc/kubernetes/static-pod-resources/etcd-certs/secrets/etcd-all-certs/etcd-serving-${THIS_NODE_HOSTNAME}.crt \
--key-file=/etc/kubernetes/static-pod-resources/etcd-certs/secrets/etcd-all-certs/etcd-serving-${THIS_NODE_HOSTNAME}.key \
--trusted-ca-file=$SERVER_CACERT \
--client-cert-auth=true \
--peer-cert-file=$ETCD_PEER_CERT \
--peer-key-file=$ETCD_PEER_KEY \
--peer-trusted-ca-file=$SERVER_CACERT \
--peer-client-cert-auth=true \
--advertise-client-urls=https://${THIS_NODE_IP}:2379 \
--listen-client-urls=https://${LISTEN_CLIENT_URLS}:2379,unixs://${THIS_NODE_IP}:0 \
--listen-peer-urls=https://${LISTEN_PEER_URLS}:2380 \
--metrics=extensive \
--listen-metrics-urls=https://${LISTEN_METRICS_URLS}:9978"
if [ -n "$OCF_RESKEY_run_cmd_opts" ]; then
OCF_RESKEY_run_cmd="$OCF_RESKEY_run_cmd $OCF_RESKEY_run_cmd_opts"
fi
if is_force_new_cluster; then
OCF_RESKEY_run_cmd="$OCF_RESKEY_run_cmd --force-new-cluster"
fi
if is_learner; then
archive_data_folder
fi
if [ $REQUIRE_IMAGE_PULL -eq 1 ]; then
ocf_log notice "Beginning pull of image, ${OCF_RESKEY_image}"
podman pull --authfile=$OCF_RESKEY_authfile "${OCF_RESKEY_image}"
if [ $? -ne 0 ]; then
ocf_exit_reason "failed to pull image ${OCF_RESKEY_image}"
return $OCF_ERR_GENERIC
fi
else
ocf_log notice "Pull image not required, ${OCF_RESKEY_image}"
fi
if ocf_is_true "$OCF_RESKEY_reuse" && container_exists; then
ocf_log info "starting existing container $CONTAINER."
ocf_run podman start $CONTAINER
else
# make sure any previous container matching our container name is cleaned up first.
# we already know at this point it wouldn't be running
remove_container
run_new_container "$run_opts" $OCF_RESKEY_image "$OCF_RESKEY_run_cmd"
if [ $? -eq 125 ]; then
return $OCF_ERR_GENERIC
fi
fi
rc=$?
# if the container was stopped or didn't exist before, systemd
# removed the libpod* scopes. So always try to recreate the drop-ins
if [ $rc -eq 0 ] && ocf_is_true "$OCF_RESKEY_drop_in_dependency"; then
cid=$(podman_container_id)
create_transient_drop_in_dependency "$cid"
rc=$?
fi
if [ $rc -ne 0 ]; then
ocf_exit_reason "podman failed to launch container (rc: $rc)"
return $OCF_ERR_GENERIC
fi
# wait for monitor to pass before declaring that the container is started
while true; do
podman_simple_status
if [ $? -ne $OCF_SUCCESS ]; then
ocf_exit_reason "Newly created podman container exited after start"
return $OCF_ERR_GENERIC
fi
monitor_cmd_exec
if [ $? -eq $OCF_SUCCESS ]; then
ocf_log notice "Container $CONTAINER started successfully"
is_force_new_cluster
if [ $? -eq 0 ]; then
clear_force_new_cluster
local peer_node_name=$(get_peer_node_name)
local peer_node_ip=$(get_peer_ip)
if [ -n "$peer_node_name" -a -n "$peer_node_ip" ]; then
add_member_as_learner $peer_node_name $peer_node_ip
else
ocf_log error "could not add peer as learner (peer node name: $peer_node_name, peer ip: $peer_node_ip)"
fi
fi
return $OCF_SUCCESS
fi
ocf_exit_reason "waiting on monitor_cmd to pass after start"
sleep 1
done
}
podman_stop()
{
local timeout=60
local rc
podman_simple_status
if [ $? -eq $OCF_NOT_RUNNING ]; then
#remove_container
ocf_log info "could not leave members list: etcd container not running"
return $OCF_SUCCESS
fi
member_id=$(get_cached_member_id)
if [ -z "$member_id" ]; then
ocf_log err "error leaving members list: could not get cached member ID"
else
# TODO: is it worth/possible to check the current status instead than relying on cached attributes?
if is_standalone; then
ocf_log info "last member. Not leaving the member list"
else
ocf_log info "leaving members list as member with ID $member_id"
endpoint="https://$(get_node_ip):2379"
ocf_run podman exec $CONTAINER etcdctl member remove $member_id --endpoints=$endpoint
rc=$?
if [ $? -ne 0 ]; then
ocf_log err "error leaving members list: error code $rc"
fi
fi
fi
clear_member_id
if [ -n "$OCF_RESKEY_CRM_meta_timeout" ]; then
timeout=$((($OCF_RESKEY_CRM_meta_timeout/1000) -10 ))
if [ $timeout -lt 10 ]; then
timeout=10
fi
fi
if ocf_is_true "$OCF_RESKEY_force_kill"; then
ocf_run podman kill $CONTAINER
rc=$?
else
ocf_log debug "waiting $timeout second[s] before killing container"
ocf_run podman stop -t=$timeout $CONTAINER
rc=$?
# on stop, systemd will automatically delete any transient
# drop-in conf that has been created earlier
fi
if [ $rc -ne 0 ]; then
# If the stop failed, it could be because the controlling conmon
# process died unexpectedly. If so, a generic error code is returned
# but the associated container exit code is -1. If that's the case,
# assume there's no failure and continue with the rm as usual.
if [ $rc -eq 125 ] && \
podman inspect --format '{{.State.Status}}:{{.State.ExitCode}}' $CONTAINER | grep -Eq '^(exited|stopped):-1$'; then
ocf_log err "Container ${CONTAINER} had an unexpected stop outcome. Trying to remove it anyway."
else
ocf_exit_reason "Failed to stop container, ${CONTAINER}, based on image, ${OCF_RESKEY_image}."
return $OCF_ERR_GENERIC
fi
fi
remove_container
if [ $? -ne 0 ]; then
ocf_exit_reason "Failed to remove stopped container, ${CONTAINER}, based on image, ${OCF_RESKEY_image}."
return $OCF_ERR_GENERIC
fi
return $OCF_SUCCESS
}
image_exists()
{
podman image exists "${OCF_RESKEY_image}"
if [ $? -eq 0 ]; then
# image found
return 0
fi
if ocf_is_true "$OCF_RESKEY_allow_pull"; then
REQUIRE_IMAGE_PULL=1
ocf_log notice "Image (${OCF_RESKEY_image}) does not exist locally but will be pulled during start"
return 0
fi
# image not found.
return 1
}
podman_validate()
{
check_binary curl
check_binary oc
check_binary podman
if [ -z "$OCF_RESKEY_node_ip_map" ]; then
ocf_exit_reason "'node_ip_map' option is required"
exit $OCF_ERR_CONFIGURED
fi
if [ -z "$OCF_RESKEY_image" ]; then
ocf_exit_reason "'image' option is required"
exit $OCF_ERR_CONFIGURED
fi
image_exists
if [ $? -ne 0 ]; then
ocf_exit_reason "base image, ${OCF_RESKEY_image}, could not be found."
exit $OCF_ERR_CONFIGURED
fi
return $OCF_SUCCESS
}
podman_notify()
{
if [ "${OCF_RESKEY_CRM_meta_notify_type}" = 'post' ] ; then
case "$OCF_RESKEY_CRM_meta_notify_operation" in
start)
ocf_log info "in start action"
ocf_log info "active: ${OCF_RESKEY_CRM_meta_notify_active_uname}"
ocf_log info "start: nodes:${OCF_RESKEY_CRM_meta_notify_start_uname}"
ocf_log info "start: resources:${OCF_RESKEY_CRM_meta_notify_start_resource}"
ocf_log info "stop: nodes:${OCF_RESKEY_CRM_meta_notify_stop_uname}"
ocf_log info "stop: resources:${OCF_RESKEY_CRM_meta_notify_stop_resource}"
;;
stop)
ocf_log info "in stop action"
ocf_log info "active: ${OCF_RESKEY_CRM_meta_notify_active_uname}"
ocf_log info "start: nodes:${OCF_RESKEY_CRM_meta_notify_start_uname}"
ocf_log info "start: resources:${OCF_RESKEY_CRM_meta_notify_start_resource}"
ocf_log info "stop: nodes:${OCF_RESKEY_CRM_meta_notify_stop_uname}"
ocf_log info "stop: resources:${OCF_RESKEY_CRM_meta_notify_stop_resource}"
;;
esac
fi
}
etcd_pod_container_exists() {
local count_matches
# Check whether the etcd pod exists on the same node (header line included)
count_matches=$(crictl pods --label app=etcd -q | xargs -I {} crictl ps --pod {} -o json | jq -r '.containers[].metadata | select ( .name == "etcd" ).name' | wc -l)
if [ "$count_matches" -eq 1 ]; then
# etcd pod found
return 0
fi
# etcd pod not found
return 1
}
cache_member_id_if_not_cached()
{
cache_member_id
member_id=$(get_cached_member_id)
if [ -z "$member_id" ]; then
ocf_log info "caching member ID"
cache_member_id
else
ocf_log info "cached member id: $member_id"
fi
}
cache_member_id()
{
local nodename
container_exists
if [ $? -ne 0 ]; then
# we need a running container to execute etcdctl.
return 0
fi
# TODO: use get_member_list_json instead
endpoint="https://$(get_node_ip):2379"
ID_DEC=$(podman exec ${CONTAINER} etcdctl member list --endpoints=$endpoint -w json | jq -r .header.member_id)
rc=$?
if [ $rc -ne 0 ]; then
ocf_log error "could not get member ID: error code $?"
return $rc
fi
if [ -z "$ID_DEC" ]; then
# the container is running, but the instance does not have its member ID yet.
return 0
fi
# etcdctl member commands need the HEX format of the member ID.
ID_HEX=$(printf "%x" $ID_DEC)
nodename=$(ocf_local_nodename)
ocf_log info "cache member ID $ID_HEX in node:$nodename"
crm_attribute --type nodes --node $nodename --name "member_id" --update $ID_HEX
rc=$?
if [ $rc -ne 0 ]; then
ocf_log error "could not cache member ID: error code $rc"
fi
return $rc
}
clear_member_id()
{
crm_attribute --type nodes --node $nodename --name "member_id" --delete
}
get_cached_member_id()
{
local nodename=$(ocf_local_nodename)
ocf_log debug "get member ID from in node:$nodename"
crm_attribute --query --type nodes --node $nodename --name "member_id" | awk -F"value=" '{print $2}'
}
add_member_as_learner()
{
local rc
local member_name=$1
local member_ip=$2
ocf_log info "add $member_name with $member_ip as learner"
out=$(podman exec ${CONTAINER} etcdctl --endpoints="https://$(get_node_ip):2379" member add $member_name --peer-urls=https://$member_ip:2380 --learner)
rc=$?
if [ $rc -ne 0 ]; then
ocf_log error "could not add $member_name as learner: error code $rc"
return $rc
fi
ocf_log info "$out"
set_learner_node $member_name
return $?
}
set_force_new_cluster()
{
local rc
local nodename=$(ocf_local_nodename)
crm_attribute --name "force_new_cluster" --update "$nodename"
rc=$?
if [ $rc -ne 0 ]; then
ocf_log error "could not set force_new_cluster attribute to $nodename"
else
ocf_log info "$nodename set force_new_cluster attribute"
fi
return $rc
}
get_force_new_cluster()
{
crm_attribute --query --name "force_new_cluster" | awk -F"value=" '{print $2}'
}
clear_force_new_cluster()
{
local force_new_cluster_node=$(get_force_new_cluster)
if [ -z "$force_new_cluster_node" ]; then
ocf_log info "$this_node: force_new_cluster attribute not set"
return $OCF_SUCCESS
fi
# only the holder of "force_new_cluster" attribute can delete it
local this_node=$(ocf_local_nodename)
if [ "$this_node" = "$force_new_cluster_node" ]; then
crm_attribute --name "force_new_cluster" --delete
rc=$?
if [ $rc -ne 0 ]; then
ocf_log error "could not clear force_new_cluster attribute: error $rc"
else
ocf_log info "$this_node: force_new_cluster attribute cleared"
fi
return $rc
else
ocf_log info "$this_node does not hold force_new_cluster ($force_new_cluster_node has it)"
return $OCF_SUCCESS
fi
}
is_force_new_cluster()
{
# Return 0 if 'force_new_cluster' is set and the value matches the current node name, 1 otherwise.
local nodename=$(ocf_local_nodename)
local value=$(get_force_new_cluster)
if [ -z $value ]; then
ocf_log info "force_new_cluster attribute is not set"
return 1
fi
if [ $value = $nodename ]; then
ocf_log info "$nodename has force_new_cluster set"
return 0
fi
ocf_log info "force_new_cluster attribute set on peer node $value"
return 1
}
is_standalone()
{
local nodename=${1:-$(ocf_local_nodename)}
local standalone_node=$(get_standalone_node)
if [ -z "$standalone_node" ]; then
# TODO: change the log level to debug when the code is stable enough
ocf_log info "no node running standalone"
return 1
fi
if [ "$nodename" = "$standalone_node" ]; then
# TODO: change the log level to debug when the code is stable enough
ocf_log info "$nodename is set as standalone"
return 0
fi
# TODO: change the log level to debug when the code is stable enough
ocf_log info "$nodename is set as learner"
return 1
}
set_standalone_node()
{
local rc
local nodename=$(ocf_local_nodename)
ocf_log info "add $nodename as standalone"
crm_attribute --name "standalone_node" --update $nodename
rc=$?
if [ $rc -ne 0 ]; then
ocf_log error "could not set standalone_node attribute to $nodename"
fi
return $rc
}
get_standalone_node()
{
crm_attribute --query --name "standalone_node" | awk -F"value=" '{print $2}'
}
clear_standalone_node()
{
if crm_attribute --name "standalone_node" --delete; then
ocf_log info "standalone_node property cleared"
fi
}
clear_standalone_and_learner_if_not_learners()
{
local rc
local member_list_json=$1
standalone_node=$(get_standalone_node)
if [ -z $standalone_node ]; then
return $OCF_SUCCESS
fi
number_of_members=$(echo -n $member_list_json | jq -r ".members[].ID" | wc -l)
if [ $number_of_members -ne 2 ]; then
ocf_log info "could not clear standalone_node, nor learner_node properties: found $number_of_members members, need 2"
return $OCF_SUCCESS
fi
id=$(echo -n $member_list_json | jq -r ".members[] | select( .isLearner==true ).ID")
rc=$?
if [ $rc -ne 0 ]; then
ocf_log error "could not get isLearner field from member list: error code $rc"
return $rc
fi
if [ -z "$id" ]; then
clear_standalone_node
rc=$?
if [ $rc -ne 0 ]; then
ocf_og error "could not clear standalone_node attribute: error code $rc"
return $rc
fi
fi
if [ -z "$id" ]; then
clear_learner_node
rc=$?
if [ $rc -ne 0 ]; then
ocf_og error "could not clear learner_node attribute: error code $rc"
return $rc
fi
fi
return $rc
}
is_learner()
{
# NOTE: do not use "learner_node" property for this.
# Return 0 if the 'standalone' attribute is set and matches the peer node name, 1 otherwise.
local standalone_node=$(get_standalone_node)
if [ -z "$standalone_node" ]; then
# TODO: change the log level to debug when the code is stable enough
ocf_log info "standalone attribute not set"
return 1
fi
local nodename=$(ocf_local_nodename)
if [ "$nodename" = "$standalone_node" ]; then
# TODO: change the log level to debug when the code is stable enough
ocf_log info "$nodename is not set as learner"
return 1
fi
# TODO: change the log level to debug when the code is stable enough
ocf_log info "$nodename is set as learner"
return 0
}
set_learner_node()
{
local rc
local nodename=$1
crm_attribute --name "learner_node" --update $nodename
rc=$?
if [ $rc -ne 0 ]; then
ocf_log error "could not set learner_node attribute to $nodename"
fi
ocf_log info "$nodename set as learner"
return $rc
}
get_learner_node()
{
crm_attribute --query --name "learner_node" | awk -F"value=" '{print $2}'
}
clear_learner_node()
{
if crm_attribute --name "learner_node" --delete; then
ocf_log info "learner_node property cleared"
fi
}
get_peer_node_name() {
crm_node -l | awk '{print $2}' | grep -v $(ocf_local_nodename)
}
get_peer_ip() {
local peer_name=$(get_peer_node_name)
crm_attribute --query --name "ip" --node $peer_name | awk -F"value=" '{print $2}'
}
get_all_etcd_endpoints() {
for node in $(echo "$OCF_RESKEY_node_ip_map" | sed "s/\s//g;s/;/ /g"); do
name=$(echo "$node" | awk -F":" '{print $1}')
ip=$(echo "$node" | awk -F":" '{print $2}')
if [ -z "$name" ] || [ -z "$ip" ]; then
ocf_exit_reason "name or ip missing for 1 or more nodes"
exit $OCF_ERR_CONFIGURED
fi
[ -z "$ALL_ETCD_ENDPOINTS" ] && ALL_ETCD_ENDPOINTS="https://$ip:2379" || ALL_ETCD_ENDPOINTS="$ALL_ETCD_ENDPOINTS,https://$ip:2379"
done
echo $ALL_ETCD_ENDPOINTS
}
get_endpoint_status_json()
{
# Get the status of all endpoints
local all_etcd_endpoints=$(get_all_etcd_endpoints)
podman exec ${CONTAINER} etcdctl endpoint status --endpoints=$all_etcd_endpoints -w json
}
get_member_list_json() {
# Get the list of members visible to the current node
local this_node_endpoint="https://$(get_node_ip):2379"
podman exec ${CONTAINER} etcdctl member list --endpoints=$this_node_endpoint -w json
}
check_peers()
{
# Check peers endpoint status and locally accessible member list
local member_list_json
local this_nodename=$(ocf_local_nodename)
container_exists
if [ $? -ne 0 ]; then
# we need a running container to execute etcdctl.
return $OCF_SUCCESS
fi
member_list_json=$(get_member_list_json)
rc=$?
ocf_log info "member list: $member_list_json"
if [ $rc -ne 0 ]; then
ocf_log info "podman failed to get member list: error code $rc"
endpoint_status_json=$(get_endpoint_status_json)
ocf_log info "endpoint status: $endpoint_status_json"
count_endpoints=$(echo -n $endpoint_status_json | jq -r ".[].Endpoint" | wc -l)
if [ $count_endpoints -eq 1 ]; then
ocf_log info "one endpoint only: checking status errors"
endpoint_status_errors=$(echo -n $endpoint_status_json | jq -r ".[0].Status.errors")
if echo "$endpoint_status_errors" | grep -q "no leader"; then
set_force_new_cluster
set_standalone_node
ocf_exit_reason "$this_nodename must force a new cluster"
return $OCF_ERR_GENERIC
fi
if [ "$endpoint_status_errors" != "null" ]; then
ocf_log error "unmanaged endpoint status error: $endpoint_status_errors"
fi
fi
return $OCF_SUCCESS
fi
# Example of .members[] instance fields in member list json format:
# NOTE that "name" is present in voting members only, while "isLearner" in learner members only
# and the value is always true (not a string) in that case.
# {
# "ID": <member ID>,
# "name": "<node hostname>",
# "peerURLs": [
# "https://<node IP>:2380"
# ],
# "clientURLs": [
# "https://<node IP>:2379"
# ]
# }
for node in $(echo "$OCF_RESKEY_node_ip_map" | sed "s/\s//g;s/;/ /g"); do
name=$(echo "$node" | awk -F":" '{print $1}')
# do not check itself
if [ "$name" == "$this_nodename" ]; then
continue
fi
# Check by IP instead of Name since "learner" members appear only in peerURLs, not by Name.
ip=$(echo "$node" | awk -F":" '{print $2}')
id=$(echo -n $member_list_json | jq -r ".members[] | select( .peerURLs | map(test(\"$ip\")) | any).ID")
if [ -z "$id" ]; then
ocf_log info "$name is not in the members list"
add_member_as_learner $name $ip
set_standalone_node
else
ocf_log debug "$name is in the members list by IP:$ip"
clear_standalone_and_learner_if_not_learners $member_list_json
fi
done
return $OCF_SUCCESS
}
cache_etcd_data() {
local rc ip nodename revision cluster_id
container_exists
if [ $? -ne 0 ]; then
# we need a running container to execute etcdctl.
return $OCF_SUCCESS
fi
ip=$(get_node_ip)
nodename=$(ocf_local_nodename)
revision=$(cat /var/lib/etcd/revision.json | jq -r ".raftIndex.\"https://$ip:2379\"")
ocf_log info "cache revision:$revision in node:$nodename"
crm_attribute --type nodes --node $nodename --name "revision" --update $revision
rc=$?
if [ $rc -ne 0 ]; then
ocf_log err "could not cache etcd revision: error code $rc"
return $?
fi
cluster_id=$(cat /var/lib/etcd/revision.json | jq -r ".clusterId")
ocf_log info "cache cluster_id:$cluster_id in node:$nodename"
crm_attribute --type nodes --node $nodename --name "cluster_id" --update $cluster_id
rc=$?
if [ $rc -ne 0 ]; then
ocf_log err "could not cache etcd cluster Id: error code $rc"
return $?
fi
return $OCF_SUCCESS
}
# TODO :
# When a user starts plural clones in a node in globally-unique, a user cannot appoint plural name parameters.
# When a user appoints reuse, the resource agent cannot connect plural clones with a container.
if ocf_is_true "$OCF_RESKEY_CRM_meta_globally_unique"; then
if [ -n "$OCF_RESKEY_name" ]; then
if [ -n "$OCF_RESKEY_CRM_meta_clone_node_max" ] && [ "$OCF_RESKEY_CRM_meta_clone_node_max" -ne 1 ]
then
ocf_exit_reason "Cannot make plural clones from the same name parameter."
exit $OCF_ERR_CONFIGURED
fi
if [ -n "$OCF_RESKEY_CRM_meta_master_node_max" ] && [ "$OCF_RESKEY_CRM_meta_master_node_max" -ne 1 ]
then
ocf_exit_reason "Cannot make plural master from the same name parameter."
exit $OCF_ERR_CONFIGURED
fi
fi
: ${OCF_RESKEY_name=`echo ${OCF_RESOURCE_INSTANCE} | tr ':' '-'`}
else
: ${OCF_RESKEY_name=${OCF_RESOURCE_INSTANCE}}
fi
CONTAINER=$OCF_RESKEY_name
# Note: we currently monitor podman containers by with the "podman exec"
# command, so make sure that invocation is always valid by enforcing the
# exec command to be non-empty
: ${OCF_RESKEY_monitor_cmd:=/bin/true}
# When OCF_RESKEY_drop_in_dependency is not populated, we
# look at another file-based way of enabling the option.
# Otherwise, consider it disabled.
if [ -z "$OCF_RESKEY_drop_in_dependency" ]; then
if [ -f "/etc/sysconfig/podman_drop_in" ] || \
[ -f "/etc/default/podman_drop_in" ]; then
OCF_RESKEY_drop_in_dependency=yes
fi
fi
case $__OCF_ACTION in
meta-data) meta_data
exit $OCF_SUCCESS;;
start)
podman_validate
podman_start;;
stop) podman_stop;;
monitor) podman_monitor;;
promote) podman_promote;;
demote) podman_demote;;
validate-all) podman_validate;;
notify)
podman_notify;;
usage|help) podman_usage
exit $OCF_SUCCESS
;;
*) podman_usage
exit $OCF_ERR_UNIMPLEMENTED
;;
esac
rc=$?
ocf_log debug "${OCF_RESOURCE_INSTANCE} $__OCF_ACTION : $rc"
exit $rc

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