mirror of
https://github.com/dredx/prole.git
synced 2026-09-24 19:54:32 +00:00
c0c7c5539c
- Removed all logic that read or set NAMESPACE/PROLE_NAMESPACE from the shell environment or wrote it to env.sh.
- prole.cfg is now the sole source of truth for the namespace value, loaded exclusively by prole_cfg.sh.
- etc/prole_cfg.sh & mock_val/prole_cfg.sh: Removed kubectl-context fallback and default for PROLE_NAMESPACE.
- Shell scripts (init_*.sh): Replaced NAMESPACE=${NAMESPACE:-...} with NAMESPACE="${PROLE_NAMESPACE}".
- Python (actions, environment, milestone): Removed env["PROLE_NAMESPACE"] from subprocess env dicts and env.sh.
- etc/init_cloudnative_pg.sh: Removed DB_PASSWORD env fallback for secret creation.
Co-authored-by: Junie <junie@jetbrains.com>
409 lines
13 KiB
Bash
Executable File
409 lines
13 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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# init_cnpg_backup.sh
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# Purpose:
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# - Configure CloudNative-PG to backup to Garage (S3-compatible) via Barman Cloud Plugin
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# - Create initial backup
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# Initialize SCRIPT_DIR
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SCRIPT_DIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
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# Load environment and config via prole_cfg.sh
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# shellcheck disable=SC1090
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source "$SCRIPT_DIR/prole_cfg.sh"
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if [[ "${1:-}" == "--mode" || "${1:-}" == "-m" ]]; then
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prole_set_mode "${2:-}"
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shift 2
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elif [[ "${1:-}" == --mode=* || "${1:-}" == -m=* ]]; then
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prole_set_mode "${1#*=}"
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shift
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fi
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ACTION=${1:-start}
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NAMESPACE="${PROLE_NAMESPACE}"
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CNPG_CLUSTER_NAME=${CNPG_CLUSTER_NAME:-prole-db}
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GARAGE_NAME=${GARAGE_NAME:-garage}
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SERVICE_NAMESPACE=${SERVICE_NAMESPACE:-}
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if [[ -z "${GARAGE_NAMESPACE:-}" ]]; then
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if [[ -n "$SERVICE_NAMESPACE" ]]; then
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GARAGE_NAMESPACE="$SERVICE_NAMESPACE"
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else
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GARAGE_NAMESPACE="$NAMESPACE"
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fi
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fi
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GARAGE_BACKUP_BUCKET=${GARAGE_BACKUP_BUCKET:-prole-db-backups}
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GARAGE_BACKUP_KEY_NAME=${GARAGE_BACKUP_KEY_NAME:-prole-db-backup}
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GARAGE_BACKUP_SECRET_NAME=${GARAGE_BACKUP_SECRET_NAME:-prole-db-barman-s3}
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GARAGE_S3_ENDPOINT=${GARAGE_S3_ENDPOINT:-http://$GARAGE_NAME.$GARAGE_NAMESPACE.svc.cluster.local:3900}
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GARAGE_S3_REGION=${GARAGE_S3_REGION:-garage}
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RUN_FIRST_BACKUP=${RUN_FIRST_BACKUP:-1}
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RETENTION_POLICY=${RETENTION_POLICY:-30d}
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BARMAN_PLUGIN_NAME=${BARMAN_PLUGIN_NAME:-barman-cloud.cloudnative-pg.io}
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BARMAN_OBJECT_NAME=${BARMAN_OBJECT_NAME:-prole-db-barman-objectstore}
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BACKUP_STATUS_TIMEOUT=${BACKUP_STATUS_TIMEOUT:-600}
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BACKUP_STATUS_INTERVAL=${BACKUP_STATUS_INTERVAL:-10}
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PLUGIN_READY_TIMEOUT=${PLUGIN_READY_TIMEOUT:-180}
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usage() {
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cat <<USAGE
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Usage: $0 [start|backup|status]
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Actions:
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start Configure Garage-backed backups and run initial backup
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backup [full|incr] Trigger a new backup now (default: full)
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status Show backup resources and verify at least one successful base backup
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USAGE
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exit 1
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}
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ensure_tools() {
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for t in kubectl; do
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command -v "$t" >/dev/null || { echo "Missing required tool: $t" >&2; exit 1; }
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done
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}
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ensure_namespace() {
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if ! kubectl get namespace "$NAMESPACE" >/dev/null 2>&1; then
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echo "Creating namespace '$NAMESPACE' ..."
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kubectl create namespace "$NAMESPACE" >/dev/null 2>&1 || true
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fi
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}
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ensure_cluster() {
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if ! kubectl get cluster "$CNPG_CLUSTER_NAME" -n "$NAMESPACE" >/dev/null 2>&1; then
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echo "ERROR: CNPG cluster '$CNPG_CLUSTER_NAME' not found in namespace '$NAMESPACE'." >&2
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exit 1
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fi
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}
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barman_crd_ready() {
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kubectl get crd objectstores.barmancloud.cnpg.io >/dev/null 2>&1
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}
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get_garage_pod() {
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kubectl get pods -n "$GARAGE_NAMESPACE" -l "app=$GARAGE_NAME" -o jsonpath='{.items[0].metadata.name}' 2>/dev/null || true
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}
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garage_exec() {
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local pod
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pod=$(get_garage_pod)
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if [[ -z "$pod" ]]; then
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echo "ERROR: Garage pod not found in namespace '$GARAGE_NAMESPACE'." >&2
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exit 1
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fi
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kubectl exec -n "$GARAGE_NAMESPACE" "$pod" -- /garage "$@"
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}
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parse_key_output() {
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local output="$1"
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local access_key secret_key
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access_key=$(echo "$output" | sed -nE 's/^(Access key ID|Key ID):[[:space:]]+//p' | head -n1)
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secret_key=$(echo "$output" | sed -nE 's/^(Secret access key|Secret key):[[:space:]]+//p' | head -n1)
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if [[ -z "$access_key" || -z "$secret_key" ]]; then
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return 1
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fi
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printf "%s\n%s" "$access_key" "$secret_key"
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}
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ensure_garage_ready() {
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echo "Checking Garage readiness ..."
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local i status_out
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for i in {1..30}; do
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if status_out=$(garage_exec status 2>/dev/null); then
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# If layout is applied, DataAvail should eventually show something or at least the node should be healthy.
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# A better check is 'layout show' to see if current layout version > 0
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local layout_out version
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layout_out=$(garage_exec layout show 2>/dev/null | grep -v "INFO" || true)
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version=$(echo "$layout_out" | awk -F: '/Current cluster layout version/ {gsub(/[[:space:]]/,"",$2); print $2; exit}' || true)
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if [[ -n "$version" && "$version" -gt 0 ]]; then
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echo "Garage layout version $version is applied and ready."
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return 0
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fi
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fi
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echo "Waiting for Garage layout to be applied... ($i/30)"
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sleep 5
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done
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echo "ERROR: Garage not ready (layout not applied) after 30 attempts." >&2
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exit 1
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}
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ensure_garage_bucket_and_key() {
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ensure_garage_ready
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echo "Ensuring Garage bucket and access key for backups ..."
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local key_info parsed access_key secret_key
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if key_info=$(garage_exec key info --show-secret "$GARAGE_BACKUP_KEY_NAME" 2>/dev/null); then
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:
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else
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key_info=$(garage_exec key create "$GARAGE_BACKUP_KEY_NAME")
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fi
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if ! parsed=$(parse_key_output "$key_info"); then
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echo "ERROR: Unable to parse Garage key output." >&2
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echo "$key_info" >&2
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exit 1
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fi
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access_key=$(echo "$parsed" | sed -n '1p')
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secret_key=$(echo "$parsed" | sed -n '2p')
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if ! garage_exec bucket info "$GARAGE_BACKUP_BUCKET" >/dev/null 2>&1; then
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garage_exec bucket create "$GARAGE_BACKUP_BUCKET"
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fi
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garage_exec bucket allow --read --write --owner --key "$GARAGE_BACKUP_KEY_NAME" "$GARAGE_BACKUP_BUCKET" || true
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echo "Creating/updating Kubernetes secret '$GARAGE_BACKUP_SECRET_NAME' ..."
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kubectl create secret generic "$GARAGE_BACKUP_SECRET_NAME" -n "$NAMESPACE" \
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--from-literal=ACCESS_KEY_ID="$access_key" \
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--from-literal=SECRET_ACCESS_KEY="$secret_key" \
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--from-literal=REGION="$GARAGE_S3_REGION" \
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--dry-run=client -o yaml | kubectl apply -f -
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}
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apply_barman_object_store() {
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if ! barman_crd_ready; then
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echo "ERROR: Barman Cloud plugin CRD not found (objectstores.barmancloud.cnpg.io). Install the plugin first." >&2
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exit 1
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fi
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echo "Applying Barman Cloud ObjectStore '$BARMAN_OBJECT_NAME' ..."
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kubectl apply -n "$NAMESPACE" -f - <<OBJECTSTORE
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apiVersion: barmancloud.cnpg.io/v1
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kind: ObjectStore
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metadata:
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name: $BARMAN_OBJECT_NAME
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spec:
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retentionPolicy: $RETENTION_POLICY
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configuration:
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destinationPath: s3://$GARAGE_BACKUP_BUCKET/
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endpointURL: $GARAGE_S3_ENDPOINT
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s3Credentials:
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accessKeyId:
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name: $GARAGE_BACKUP_SECRET_NAME
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key: ACCESS_KEY_ID
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secretAccessKey:
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name: $GARAGE_BACKUP_SECRET_NAME
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key: SECRET_ACCESS_KEY
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region:
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name: $GARAGE_BACKUP_SECRET_NAME
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key: REGION
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wal:
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compression: gzip
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data:
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compression: gzip
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OBJECTSTORE
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}
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ensure_barman_plugin_config() {
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local plugin_names plugin_present
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plugin_names=$(kubectl -n "$NAMESPACE" get cluster "$CNPG_CLUSTER_NAME" -o jsonpath='{.spec.plugins[*].name}' 2>/dev/null || true)
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plugin_present=$(printf '%s\n' "$plugin_names" | tr ' ' '\n' | grep -F "$BARMAN_PLUGIN_NAME" || true)
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if [[ -n "$plugin_present" ]]; then
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return 0
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fi
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local plugins_json
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plugins_json=$(kubectl -n "$NAMESPACE" get cluster "$CNPG_CLUSTER_NAME" -o jsonpath='{.spec.plugins}' 2>/dev/null || true)
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echo "Configuring CNPG to use Barman Cloud plugin '$BARMAN_PLUGIN_NAME' ..."
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if [[ -z "$plugins_json" || "$plugins_json" == "null" || "$plugins_json" == "[]" ]]; then
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kubectl patch cluster "$CNPG_CLUSTER_NAME" -n "$NAMESPACE" --type merge -p "{
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\"spec\": {
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\"plugins\": [
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{
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\"name\": \"$BARMAN_PLUGIN_NAME\",
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\"isWALArchiver\": true,
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\"parameters\": {\"barmanObjectName\": \"$BARMAN_OBJECT_NAME\"}
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}
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]
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}
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}"
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else
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kubectl patch cluster "$CNPG_CLUSTER_NAME" -n "$NAMESPACE" --type json -p "[
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{
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\"op\": \"add\",
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\"path\": \"/spec/plugins/-\",
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\"value\": {
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\"name\": \"$BARMAN_PLUGIN_NAME\",
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\"isWALArchiver\": true,
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\"parameters\": {\"barmanObjectName\": \"$BARMAN_OBJECT_NAME\"}
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}
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}
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]"
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fi
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}
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remove_native_barman_config() {
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kubectl patch cluster "$CNPG_CLUSTER_NAME" -n "$NAMESPACE" --type merge -p "{\"spec\":{\"backup\":null}}" >/dev/null 2>&1 || true
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}
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wait_for_plugin_ready() {
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local start_time now plugin_names deployment_rows ns ready replicas
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start_time=$(date +%s)
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while true; do
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plugin_names=$(kubectl -n "$NAMESPACE" get cluster "$CNPG_CLUSTER_NAME" -o jsonpath='{.spec.plugins[*].name}' 2>/dev/null || true)
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if printf '%s\n' "$plugin_names" | tr ' ' '\n' | grep -Fxq "$BARMAN_PLUGIN_NAME"; then
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deployment_rows=$(kubectl get deployment -A -l app.kubernetes.io/name=barman-cloud -o jsonpath='{range .items[*]}{.metadata.namespace}{"\t"}{.status.readyReplicas}{"\t"}{.status.replicas}{"\n"}{end}' 2>/dev/null || true)
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if [[ -z "$deployment_rows" ]]; then
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deployment_rows=$(kubectl get deployment -A -o jsonpath='{range .items[?(@.metadata.name=="barman-cloud")]}{.metadata.namespace}{"\t"}{.status.readyReplicas}{"\t"}{.status.replicas}{"\n"}{end}' 2>/dev/null || true)
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fi
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while IFS=$'\t' read -r ns ready replicas; do
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[[ -z "$ns" ]] && continue
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ready=${ready:-0}
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replicas=${replicas:-0}
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if (( ready >= 1 && replicas >= 1 )); then
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return 0
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fi
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done <<< "$deployment_rows"
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fi
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now=$(date +%s)
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if (( now - start_time >= PLUGIN_READY_TIMEOUT )); then
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echo "ERROR: Timed out waiting for CNPG plugin '$BARMAN_PLUGIN_NAME' to become available." >&2
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return 1
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fi
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echo "Waiting for CNPG plugin '$BARMAN_PLUGIN_NAME' to become available ..."
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sleep 5
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done
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}
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has_successful_base_backup() {
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local rows name phase method backup_type phase_lc method_lc backup_type_lc
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rows=$(kubectl get backup -n "$NAMESPACE" -o jsonpath="{range .items[?(@.spec.cluster.name=='$CNPG_CLUSTER_NAME')]}{.metadata.name}{\"\t\"}{.status.phase}{\"\t\"}{.spec.method}{\"\t\"}{.spec.pluginConfiguration.parameters.backupType}{\"\n\"}{end}" 2>/dev/null || true)
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if [[ -z "$rows" ]]; then
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return 1
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fi
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while IFS=$'\t' read -r name phase method backup_type; do
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[[ -z "$name" ]] && continue
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phase_lc=$(echo "${phase:-}" | tr '[:upper:]' '[:lower:]')
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method_lc=$(echo "${method:-}" | tr '[:upper:]' '[:lower:]')
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backup_type_lc=$(echo "${backup_type:-}" | tr '[:upper:]' '[:lower:]')
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if [[ "$phase_lc" != "completed" && "$phase_lc" != "succeeded" ]]; then
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continue
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fi
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if [[ "$method_lc" == "plugin" ]] && [[ "$backup_type_lc" == "incremental" || "$backup_type_lc" == "incr" ]]; then
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continue
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fi
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return 0
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done <<< "$rows"
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return 1
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}
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wait_for_successful_base_backup() {
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local start_time now elapsed
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start_time=$(date +%s)
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while true; do
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if has_successful_base_backup; then
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return 0
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fi
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now=$(date +%s)
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elapsed=$((now - start_time))
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if (( elapsed >= BACKUP_STATUS_TIMEOUT )); then
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return 1
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fi
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echo "Waiting for a successful base backup ... (${elapsed}s/${BACKUP_STATUS_TIMEOUT}s)"
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sleep "$BACKUP_STATUS_INTERVAL"
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done
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}
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trigger_backup() {
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local backup_type="${1:-full}"
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local backup_name
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backup_name="${CNPG_CLUSTER_NAME}-backup-$(date +%Y%m%d%H%M%S)"
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echo "Triggering ${backup_type} backup $backup_name ..."
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if [[ "$backup_type" == "incremental" || "$backup_type" == "incr" ]]; then
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kubectl apply -n "$NAMESPACE" -f - <<BACKUP
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apiVersion: postgresql.cnpg.io/v1
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kind: Backup
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metadata:
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name: $backup_name
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spec:
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method: plugin
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pluginConfiguration:
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name: $BARMAN_PLUGIN_NAME
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parameters:
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barmanObjectName: $BARMAN_OBJECT_NAME
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backupType: incremental
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cluster:
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name: $CNPG_CLUSTER_NAME
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BACKUP
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else
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kubectl apply -n "$NAMESPACE" -f - <<BACKUP
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apiVersion: postgresql.cnpg.io/v1
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kind: Backup
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metadata:
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name: $backup_name
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spec:
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method: plugin
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pluginConfiguration:
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name: $BARMAN_PLUGIN_NAME
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parameters:
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barmanObjectName: $BARMAN_OBJECT_NAME
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cluster:
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name: $CNPG_CLUSTER_NAME
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BACKUP
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fi
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}
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status() {
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ensure_tools
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echo "Backups for cluster '$CNPG_CLUSTER_NAME' in namespace '$NAMESPACE':"
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kubectl get backup -n "$NAMESPACE" | grep "$CNPG_CLUSTER_NAME" || true
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if has_successful_base_backup; then
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echo "Backup status: OK (at least one successful base backup is available)."
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return 0
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fi
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echo "ERROR: No successful base backup found for cluster '$CNPG_CLUSTER_NAME'." >&2
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return 1
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}
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case "$ACTION" in
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start)
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ensure_tools
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ensure_namespace
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ensure_cluster
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ensure_garage_bucket_and_key
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apply_barman_object_store
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ensure_barman_plugin_config
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wait_for_plugin_ready
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remove_native_barman_config
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if [[ "$RUN_FIRST_BACKUP" == "1" ]]; then
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trigger_backup
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fi
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if ! wait_for_successful_base_backup; then
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echo "ERROR: Timed out waiting for a successful base backup." >&2
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status || true
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exit 1
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fi
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status
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;;
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backup)
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ensure_tools
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ensure_namespace
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ensure_cluster
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trigger_backup "${2:-full}"
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;;
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status)
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status
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;;
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*)
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usage
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;;
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esac
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