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# Sourced by managed-container; uses the shared OCF and parameter environment.
mc_pg_notify_target_daemon_shadow()
{
local expected_node="$1"
local expected_successor="$2"
local socket_path resource response rc
socket_path="${MC_PROXY_SOCKET:-/run/user/1000/managed-containerd/managed-containerd.sock}"
resource="${OCF_RESOURCE_INSTANCE:-}"
resource="${resource%%:*}"
[ -n "${resource}" ] || return 0
response="$(
timeout --kill-after=1s 3s \
python3 \
"${MC_PROXY_CLIENT:-/usr/lib/ocf/resource.d/loxthelion/managed-container.d/proxy_client.py}" \
"${socket_path}" \
"${resource}" \
"notify.target" \
10 \
11
)"
rc=$?
if [ "${rc}" -ne 0 ]; then
ocf_log warn \
"managed-containerd notify.target shadow unavailable rc=${rc}"
return 0
fi
if MC_DAEMON_RESPONSE="${response}" \
MC_EXPECTED_NODE="${expected_node}" \
MC_EXPECTED_SUCCESSOR="${expected_successor}" \
python3 -c '
import json
import os
import sys
try:
response = json.loads(os.environ["MC_DAEMON_RESPONSE"])
except (KeyError, TypeError, json.JSONDecodeError):
raise SystemExit(1)
if (
response.get("ocf_rc") != 0
or response.get("target") is not True
or response.get("target_node", "").lower()
!= os.environ["MC_EXPECTED_NODE"].lower()
or response.get("successor_node", "").lower()
!= os.environ["MC_EXPECTED_SUCCESSOR"].lower()
):
raise SystemExit(1)
'; then
ocf_log info \
"managed-containerd notify.target shadow: comparison=MATCH target=${expected_node} successor=${expected_successor}"
else
ocf_log err \
"managed-containerd notify.target shadow MISMATCH: expected_target=${expected_node} expected_successor=${expected_successor} response=${response}"
fi
return 0
}
mc_pg_demote_notification_target()
{
local allow_self="${1:-false}"
local state_file
local type operation promote_uname demote_uname local_node
local now mtime age
local promote_norm local_norm demote_norm
state_file="/run/loxthelion/${OCF_RESOURCE_INSTANCE:-managed-container}.notify"
local_node="${OCF_RESKEY_CRM_meta_on_node:-$(hostname)}"
[ -r "${state_file}" ] || return 1
now="$(date +%s)" || return 1
mtime="$(stat -c %Y "${state_file}" 2>/dev/null)" || return 1
age=$((now - mtime))
[ "${age}" -ge 0 ] || return 1
[ "${age}" -le 120 ] || return 1
type="$(sed -n 's/^type=//p' "${state_file}" | head -n1)"
operation="$(sed -n 's/^operation=//p' "${state_file}" | head -n1)"
promote_uname="$(sed -n 's/^promote_uname=//p' "${state_file}" | head -n1)"
demote_uname="$(sed -n 's/^demote_uname=//p' "${state_file}" | head -n1)"
[ "${type}" = "pre" ] || return 1
[ "${operation}" = "demote" ] || return 1
local_norm="$(printf '%s' "${local_node}" | tr '[:upper:]' '[:lower:]')"
demote_norm="$(printf '%s' "${demote_uname}" | tr '[:upper:]' '[:lower:]')"
promote_norm="$(printf '%s' "${promote_uname}" | tr '[:upper:]' '[:lower:]')"
[ "${demote_norm}" = "${local_norm}" ] || return 1
[ -n "${promote_uname}" ] || return 1
case "${promote_uname}" in
*" "*) return 1 ;;
esac
if [ "${allow_self}" != true ] && [ "${promote_norm}" = "${local_norm}" ]; then
return 1
fi
mc_pg_notify_target_daemon_shadow "${local_node}" "${promote_uname}"
printf '%s\n' "${promote_uname}"
}
# Legacy callers retain the historical requirement for a distinct successor.
demote_target()
{
mc_pg_demote_notification_target false
}
# Native-peer demotion can distinguish a true handoff from Pacemaker's
# demote/restart/re-promote of the same node after a resource-definition change.
mc_pg_native_demote_target()
{
mc_pg_demote_notification_target true
}
mc_pg_notify_daemon_shadow()
{
local socket_path resource parameters response rc
socket_path="${MC_PROXY_SOCKET:-/run/user/1000/managed-containerd/managed-containerd.sock}"
resource="${OCF_RESOURCE_INSTANCE:-}"
resource="${resource%%:*}"
[ -n "${resource}" ] || return 0
parameters="$(
python3 -c '
import json
import os
print(json.dumps({
"type": os.environ.get("OCF_RESKEY_CRM_meta_notify_type", ""),
"operation": os.environ.get("OCF_RESKEY_CRM_meta_notify_operation", ""),
"promote_uname": os.environ.get("OCF_RESKEY_CRM_meta_notify_promote_uname", ""),
"demote_uname": os.environ.get("OCF_RESKEY_CRM_meta_notify_demote_uname", ""),
"promoted_uname": os.environ.get("OCF_RESKEY_CRM_meta_notify_promoted_uname", ""),
"unpromoted_uname": os.environ.get("OCF_RESKEY_CRM_meta_notify_unpromoted_uname", ""),
}, separators=(",", ":")))
'
)" || {
ocf_log warn "unable to encode daemon notification parameters"
return 0
}
response="$(
timeout --kill-after=1s 3s \
python3 \
"${MC_PROXY_CLIENT:-/usr/lib/ocf/resource.d/loxthelion/managed-container.d/proxy_client.py}" \
"${socket_path}" \
"${resource}" \
"notify" \
10 \
11 \
"${parameters}"
)"
rc=$?
if [ "${rc}" -ne 0 ]; then
ocf_log warn \
"managed-containerd notify shadow unavailable rc=${rc}"
return 0
fi
ocf_log info \
"managed-containerd notify shadow accepted: ${response}"
return 0
}
managed_notify()
{
local state_dir state_file
state_dir="/run/loxthelion"
state_file="${state_dir}/${OCF_RESOURCE_INSTANCE:-managed-container}.notify"
ocf_log info \
"notify: type=${OCF_RESKEY_CRM_meta_notify_type:-unset} operation=${OCF_RESKEY_CRM_meta_notify_operation:-unset}"
ocf_log info \
"notify: promote_uname=${OCF_RESKEY_CRM_meta_notify_promote_uname:-none} demote_uname=${OCF_RESKEY_CRM_meta_notify_demote_uname:-none}"
ocf_log info \
"notify: promoted_uname=${OCF_RESKEY_CRM_meta_notify_promoted_uname:-none} unpromoted_uname=${OCF_RESKEY_CRM_meta_notify_unpromoted_uname:-none}"
if ! mkdir -p -m 0755 "${state_dir}"; then
ocf_exit_reason \
"Unable to create notification state directory ${state_dir}"
return "${OCF_ERR_GENERIC}"
fi
if ! {
printf 'timestamp=%s\n' "$(date --iso-8601=seconds)"
printf 'node=%s\n' "$(hostname)"
printf 'type=%s\n' "${OCF_RESKEY_CRM_meta_notify_type:-}"
printf 'operation=%s\n' "${OCF_RESKEY_CRM_meta_notify_operation:-}"
printf 'promote_uname=%s\n' "${OCF_RESKEY_CRM_meta_notify_promote_uname:-}"
printf 'demote_uname=%s\n' "${OCF_RESKEY_CRM_meta_notify_demote_uname:-}"
printf 'promoted_uname=%s\n' "${OCF_RESKEY_CRM_meta_notify_promoted_uname:-}"
printf 'unpromoted_uname=%s\n' "${OCF_RESKEY_CRM_meta_notify_unpromoted_uname:-}"
} > "${state_file}"
then
ocf_exit_reason \
"Unable to write notification state ${state_file}"
return "${OCF_ERR_GENERIC}"
fi
chmod 0600 "${state_file}" || {
ocf_exit_reason \
"Unable to secure notification state ${state_file}"
return "${OCF_ERR_GENERIC}"
}
{
printf '%s node=%s type=%s operation=%s promote=[%s] demote=[%s] promoted=[%s] unpromoted=[%s]\n' \
"$(date --iso-8601=seconds)" \
"$(hostname)" \
"${OCF_RESKEY_CRM_meta_notify_type:-}" \
"${OCF_RESKEY_CRM_meta_notify_operation:-}" \
"${OCF_RESKEY_CRM_meta_notify_promote_uname:-}" \
"${OCF_RESKEY_CRM_meta_notify_demote_uname:-}" \
"${OCF_RESKEY_CRM_meta_notify_promoted_uname:-}" \
"${OCF_RESKEY_CRM_meta_notify_unpromoted_uname:-}" \
>> "${state_dir}/${OCF_RESOURCE_INSTANCE:-managed-container}.notify.log"
} || true
mc_pg_notify_daemon_shadow
return "${OCF_SUCCESS}"
}