Add PostgreSQL HA OCF agent modular baseline

2026-09-12 01:28:33 -04:00
commit 4a358ae0f6
30 changed files with 7119 additions and 0 deletions
@@ -0,0 +1,109 @@
+# Sourced by managed-container; uses the shared OCF and parameter environment.
+
+demote_target()
+{
+    local state_file
+    local type operation promote_uname demote_uname local_node
+    local now mtime age
+
+    state_file="/run/loxthelion/${OCF_RESOURCE_INSTANCE:-managed-container}.notify"
+    local_node="$(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
+    [ "${operation}" = "demote" ] || return 1
+    [ "${demote_uname}" = "${local_node}" ] || return 1
+    [ -n "${promote_uname}" ] || return 1
+    [ "${promote_uname}" != "${local_node}" ] || return 1
+
+    case "${promote_uname}" in
+        *" "*) return 1 ;;
+    esac
+
+    printf '%s
+' "${promote_uname}"
+}
+
+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
+
+    return "${OCF_SUCCESS}"
+}