prole/etc/init_gitea.sh

#!/usr/bin/env bash
set -euo pipefail

PROG="init_gitea"
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"

# shellcheck disable=SC1090
source "$SCRIPT_DIR/prole_cfg.sh"

MODE="$(prole_normalize_mode "${PROLE_MODE:-${DEPLOYMENT_MODE:-k3d}}")"
NAMESPACE="${GITEA_NAMESPACE:-}"
CFG_PATH=""
FORCE=0

usage() {
  cat <<EOF
Usage:
  $PROG [options] [deploy]

Options:
  --mode <k3d|k3s|k8s|local>   Deployment mode (default: ${MODE:-k3d})
  -n, --namespace <name>       Target namespace (default: gitea)
  -c, --config <config.cfg>    Path to config file (defaults to detected)
  --force                      Delete existing release before deploy
  --help                       Show this help

Behavior:
  - Prefers Helm install/upgrade (gitea-charts/gitea).
  - Falls back to applying a generated Deployment/Service/Ingress manifest.
  - If a local registry is enabled, the image is mirrored there first.
EOF
}

die() { echo "[ERROR] $*" >&2; exit 2; }
log() { echo "[INFO] $*"; }
warn() { echo "[WARN] $*" >&2; }

while [[ $# -gt 0 ]]; do
  case "$1" in
    --mode) MODE="$(prole_normalize_mode "${2:-}")"; shift 2 ;;
    --mode=*) MODE="$(prole_normalize_mode "${1#*=}")"; shift 1 ;;
    -n|--namespace) NAMESPACE="${2:-}"; shift 2 ;;
    --namespace=*) NAMESPACE="${1#*=}"; shift 1 ;;
    -c|--config) CFG_PATH="${2:-}"; shift 2 ;;
    --config=*) CFG_PATH="${1#*=}"; shift 1 ;;
    --force) FORCE=1; shift ;;
    -h|--help) usage; exit 0 ;;
    *) break ;;
  esac
done

# Resolve config path and namespace defaults when present
if [[ -z "$CFG_PATH" && -n "${PROLE_CONF:-}" ]]; then
  CFG_PATH="$(_prole_cfg_select_cfg_file "${PROLE_CONF}")"
fi
if [[ -z "$CFG_PATH" ]]; then
  CFG_PATH="$(_prole_cfg_select_cfg_file "$SCRIPT_DIR/../conf")"
fi

if [[ -z "$NAMESPACE" && -n "$CFG_PATH" ]]; then
  maybe_ns="$(_prole_cfg_extract_key "$CFG_PATH" "GITOPS_NAMESPACE")"
  [[ -z "$maybe_ns" ]] && maybe_ns="$(_prole_cfg_extract_key "$CFG_PATH" "GITEA_NAMESPACE")"
  NAMESPACE="$maybe_ns"
fi
NAMESPACE="${NAMESPACE:-gitea}"
export GITEA_NAMESPACE="$NAMESPACE"

case "$MODE" in
  k3d|k3s|k8s|local) ;;
  *) die "Unsupported mode '$MODE' (use k3d, k3s, k8s, or local)" ;;
esac
export PROLE_MODE="$MODE"

command -v kubectl >/dev/null || die "kubectl not found"
command -v helm >/dev/null || warn "helm not found — will use manifest fallback"

kubectl get ns "$NAMESPACE" >/dev/null 2>&1 || kubectl create namespace "$NAMESPACE" >/dev/null 2>&1

CHART_REPO="https://dl.gitea.com/charts"
CHART_NAME="gitea-charts/gitea"
RELEASE_NAME="gitea"
IMAGE_REPO_DEFAULT="gitea/gitea"
IMAGE_TAG="${GITEA_IMAGE_TAG:-1.22.3}"
IMAGE_REPO="$IMAGE_REPO_DEFAULT"
NODE_SELECTOR="${GITEA_NODE_SELECTOR:-${NODE_SELECTOR:-}}"
GITEA_PV_NODE="${GITEA_PV_NODE:-${GITEA_NODE_SELECTOR:-gandalf.prole.org}}"
GITEA_PV_BASE_DIR="${GITEA_PV_BASE_DIR:-/synology/d005}"
GITEA_STORAGE_CLASS="${GITEA_STORAGE_CLASS:-gitea-local-d005}"
GITEA_DOMAIN="${GITEA_DOMAIN:-git.prole.org}"
GITEA_SSH_DOMAIN="${GITEA_SSH_DOMAIN:-$GITEA_DOMAIN}"
KNOE_DB_NAMESPACE="${KNOE_DB_NAMESPACE:-${DATABASE_NAMESPACE:-knoe-db}}"
KNOE_DB_CLUSTER="${KNOE_DB_CLUSTER:-${CLUSTER_NAME:-knoe-db}}"
KNOE_DB_SERVICE="${KNOE_DB_SERVICE:-${KNOE_DB_CLUSTER}-rw}"
KNOE_DB_PORT="${KNOE_DB_PORT:-${DB_HOST_PORT:-5432}}"
KNOE_DB_ADMIN_USER="${KNOE_DB_ADMIN_USER:-${KNOE_DB_USER:-postgres}}"
GITEA_DB_NAME="${GITEA_DB_NAME:-gitea}"
GITEA_DB_USER="${GITEA_DB_USER:-gitea}"
GITEA_DB_PASSWORD="${GITEA_DB_PASSWORD:-${DB_PASSWORD:-}}"

is_secret_placeholder() {
  case "${1:-}" in
    '${PROLE_SECRET:'*|'${OPENBAO:'*) return 0 ;;
  esac
  return 1
}

resolve_gitea_db_password() {
  if [[ -n "${GITEA_DB_PASSWORD:-}" ]] && ! is_secret_placeholder "${GITEA_DB_PASSWORD}"; then
    return 0
  fi

  if kubectl -n "$KNOE_DB_NAMESPACE" get secret knoe-db-superuser >/dev/null 2>&1; then
    local resolved
    resolved=$(kubectl -n "$KNOE_DB_NAMESPACE" get secret knoe-db-superuser \
      -o jsonpath='{.data.password}' 2>/dev/null | base64 -d 2>/dev/null || true)
    if [[ -n "$resolved" ]]; then
      GITEA_DB_PASSWORD="$resolved"
    fi
  fi

  if [[ -z "${GITEA_DB_PASSWORD:-}" ]] || is_secret_placeholder "${GITEA_DB_PASSWORD}"; then
    warn "Could not resolve a concrete Gitea DB password; database bootstrap may be skipped."
  fi
}

resolve_knoe_db_primary_pod() {
  local primary
  primary=$(kubectl -n "$KNOE_DB_NAMESPACE" get pods \
    -l "cnpg.io/cluster=${KNOE_DB_CLUSTER},cnpg.io/instanceRole=primary" \
    -o jsonpath='{.items[0].metadata.name}' 2>/dev/null || true)
  if [[ -z "$primary" ]]; then
    primary=$(kubectl -n "$KNOE_DB_NAMESPACE" get pods \
      -l "cnpg.io/cluster=${KNOE_DB_CLUSTER}" \
      -o jsonpath='{.items[0].metadata.name}' 2>/dev/null || true)
  fi
  printf '%s' "$primary"
}

sql_escape_literal() {
  printf '%s' "${1:-}" | sed "s/'/''/g"
}

setup_knoe_db_for_gitea() {
  local primary
  primary="$(resolve_knoe_db_primary_pod)"
  if [[ -z "$primary" ]]; then
    warn "No knoe-db pod found in namespace '${KNOE_DB_NAMESPACE}'; skipping Gitea DB setup."
    return 0
  fi

  resolve_gitea_db_password
  if [[ -z "${GITEA_DB_PASSWORD:-}" ]] || is_secret_placeholder "${GITEA_DB_PASSWORD}"; then
    warn "Skipping Gitea DB setup due to unresolved GITEA_DB_PASSWORD."
    return 0
  fi

  local admin_user=""
  local candidate
  for candidate in "$KNOE_DB_ADMIN_USER" postgres root; do
    [[ -z "$candidate" ]] && continue
    if kubectl -n "$KNOE_DB_NAMESPACE" exec "$primary" -c postgres -- \
      psql -U "$candidate" -d postgres -tAc "SELECT 1" >/dev/null 2>&1; then
      admin_user="$candidate"
      break
    fi
  done

  if [[ -z "$admin_user" ]]; then
    warn "Unable to connect to knoe-db as admin user; skipping Gitea DB setup."
    return 0
  fi

  local escaped_password
  escaped_password="$(sql_escape_literal "$GITEA_DB_PASSWORD")"

  kubectl -n "$KNOE_DB_NAMESPACE" exec "$primary" -c postgres -- \
    psql -U "$admin_user" -d postgres -c "
      DO \$\$ BEGIN
        IF NOT EXISTS (SELECT FROM pg_roles WHERE rolname='${GITEA_DB_USER}') THEN
          CREATE ROLE ${GITEA_DB_USER} LOGIN PASSWORD '${escaped_password}';
        END IF;
      END \$\$;
    " >/dev/null 2>&1 || warn "Could not create role '${GITEA_DB_USER}'."

  local db_exists
  db_exists=$(kubectl -n "$KNOE_DB_NAMESPACE" exec "$primary" -c postgres -- \
    psql -U "$admin_user" -d postgres -tAc "SELECT 1 FROM pg_database WHERE datname='${GITEA_DB_NAME}';" 2>/dev/null || true)

  if [[ "$db_exists" != "1" ]]; then
    kubectl -n "$KNOE_DB_NAMESPACE" exec "$primary" -c postgres -- \
      psql -U "$admin_user" -d postgres -c "CREATE DATABASE ${GITEA_DB_NAME} OWNER ${GITEA_DB_USER};" \
      >/dev/null 2>&1 || warn "Could not create database '${GITEA_DB_NAME}'."
  fi

  log "Gitea database '${GITEA_DB_NAME}' prepared in namespace '${KNOE_DB_NAMESPACE}'."
}

# Optional reset
if [[ "$FORCE" -eq 1 ]]; then
  warn "--force specified; removing existing Gitea resources in namespace $NAMESPACE"
  if command -v helm >/dev/null 2>&1; then
    helm uninstall "$RELEASE_NAME" -n "$NAMESPACE" >/dev/null 2>&1 || true
  fi
  kubectl -n "$NAMESPACE" delete deploy/gitea svc/gitea-http svc/gitea-ssh ingress/gitea >/dev/null 2>&1 || true
fi

# Mirror to local registry if enabled
if _prole_local_registry_enabled && command -v docker >/dev/null; then
  HOST_REG="${LOCAL_REGISTRY:-${PROLE_LOCAL_REGISTRY:-}}"
  INTERNAL_REG="${LOCAL_REGISTRY_INTERNAL:-${PROLE_LOCAL_REGISTRY_INTERNAL:-}}"
  if [[ -n "$HOST_REG" ]]; then
    HOST_IMG="${HOST_REG}/${IMAGE_REPO_DEFAULT}"
    log "Pulling ${IMAGE_REPO_DEFAULT}:${IMAGE_TAG}"
    docker pull "${IMAGE_REPO_DEFAULT}:${IMAGE_TAG}" >/dev/null
    log "Tagging ${HOST_IMG}:${IMAGE_TAG}"
    docker tag "${IMAGE_REPO_DEFAULT}:${IMAGE_TAG}" "${HOST_IMG}:${IMAGE_TAG}"
    log "Pushing ${HOST_IMG}:${IMAGE_TAG}"
    docker push "${HOST_IMG}:${IMAGE_TAG}" >/dev/null || warn "Push to local registry failed; continuing with upstream image"
    if [[ -n "$INTERNAL_REG" ]]; then
      IMAGE_REPO="${INTERNAL_REG}/gitea/gitea"
    else
      IMAGE_REPO="${HOST_REG}/gitea/gitea"
    fi
  fi
fi

deploy_with_helm() {
  command -v helm >/dev/null 2>&1 || return 1

  helm repo add gitea-charts "$CHART_REPO" >/dev/null 2>&1 || true
  helm repo update >/dev/null 2>&1 || true

  # Minimal config: NodePort or ClusterIP + Ingress depending on environment.
  # Avoid heavy persistence defaults; users can override via values later.
  local -a helm_args=(
    --set "image.repository=$IMAGE_REPO"
    --set "image.tag=$IMAGE_TAG"
    --set "image.rootless=false"
    --set "image.fullOverride=${IMAGE_REPO}:${IMAGE_TAG}"
    --set "service.http.type=ClusterIP"
    --set "service.ssh.type=ClusterIP"
    --set "service.ssh.port=22"
    --set "gitea.admin.username=${GITEA_ADMIN_USER:-gitea_admin}"
    --set "gitea.admin.password=${GITEA_ADMIN_PASSWORD:-gitea_admin}"
    --set "gitea.admin.email=${GITEA_ADMIN_EMAIL:-gitea_admin@example.local}"
    --set "gitea.config.server.DOMAIN=${GITEA_DOMAIN}"
    --set "gitea.config.server.SSH_DOMAIN=${GITEA_SSH_DOMAIN}"
    --set "gitea.config.server.ROOT_URL=http://${GITEA_DOMAIN}/"
    --set "gitea.config.server.HTTP_PORT=3000"
    --set "gitea.config.server.SSH_PORT=22"
    --set "gitea.config.database.DB_TYPE=postgres"
    --set "gitea.config.database.HOST=${KNOE_DB_SERVICE}.${KNOE_DB_NAMESPACE}.svc.cluster.local:${KNOE_DB_PORT}"
    --set "gitea.config.database.NAME=${GITEA_DB_NAME}"
    --set "gitea.config.database.USER=${GITEA_DB_USER}"
    --set-string "gitea.config.database.PASSWD=${GITEA_DB_PASSWORD}"
    --set "gitea.config.database.SSL_MODE=disable"
    --set "gitea.config.session.PROVIDER=db"
    --set "postgresql.enabled=false"
    --set "postgresql-ha.enabled=false"
    --set "valkey-cluster.enabled=false"
    --set "persistence.enabled=true"
  )

  if [[ "$MODE" == "k3s" ]]; then
    helm_args+=(
      --set "gitea.config.cache.ADAPTER=memory"
      --set "global.storageClass=$GITEA_STORAGE_CLASS"
      --set "persistence.storageClass=$GITEA_STORAGE_CLASS"
      --set "nodeSelector.kubernetes\\.io/hostname=$GITEA_PV_NODE"
      --set "deployment.strategy=Recreate"
    )
  fi

  helm upgrade --install "$RELEASE_NAME" "$CHART_NAME" \
    -n "$NAMESPACE" \
    "${helm_args[@]}" \
    --wait --timeout 10m
}

ensure_k3s_storage_layout() {
  [[ "$MODE" == "k3s" ]] || return 0

  log "Ensuring Gitea k3s storage on node '${GITEA_PV_NODE}' at '${GITEA_PV_BASE_DIR}' (storageClass=${GITEA_STORAGE_CLASS})"

  cat <<EOF | kubectl apply -f -
apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
  name: ${GITEA_STORAGE_CLASS}
provisioner: kubernetes.io/no-provisioner
reclaimPolicy: Retain
volumeBindingMode: WaitForFirstConsumer
EOF

  cat <<EOF | kubectl apply -f -
apiVersion: v1
kind: PersistentVolume
metadata:
  name: gitea-d005-shared-storage
spec:
  capacity:
    storage: 10Gi
  accessModes:
    - ReadWriteOnce
  storageClassName: ${GITEA_STORAGE_CLASS}
  persistentVolumeReclaimPolicy: Retain
  hostPath:
    path: ${GITEA_PV_BASE_DIR}/gitea/shared
    type: DirectoryOrCreate
  claimRef:
    namespace: ${NAMESPACE}
    name: gitea-shared-storage
  nodeAffinity:
    required:
      nodeSelectorTerms:
        - matchExpressions:
            - key: kubernetes.io/hostname
              operator: In
              values:
                - ${GITEA_PV_NODE}
EOF
}

prepare_k3s_host_permissions() {
  [[ "$MODE" == "k3s" ]] || return 0

  local prep_pod="gitea-storage-perms"
  kubectl -n "$NAMESPACE" delete pod "$prep_pod" --ignore-not-found >/dev/null 2>&1 || true

  cat <<EOF | kubectl apply -n "$NAMESPACE" -f -
apiVersion: v1
kind: Pod
metadata:
  name: ${prep_pod}
spec:
  restartPolicy: Never
  nodeSelector:
    kubernetes.io/hostname: ${GITEA_PV_NODE}
  containers:
    - name: perms
      image: busybox:1.36
      command:
        - /bin/sh
        - -c
      args:
        - |
          set -eu
          mkdir -p \
            /host/gitea/shared
          chmod -R 0777 /host/gitea
      securityContext:
        runAsUser: 0
      volumeMounts:
        - name: host-root
          mountPath: /host
  volumes:
    - name: host-root
      hostPath:
        path: ${GITEA_PV_BASE_DIR}
        type: DirectoryOrCreate
EOF

  kubectl -n "$NAMESPACE" wait --for=jsonpath='{.status.phase}'=Succeeded pod/${prep_pod} --timeout=120s >/dev/null
  kubectl -n "$NAMESPACE" delete pod "$prep_pod" --ignore-not-found >/dev/null 2>&1 || true
}

reset_stuck_k3s_release() {
  [[ "$MODE" == "k3s" ]] || return 0
  local pending
  pending=$(kubectl -n "$NAMESPACE" get pvc -o jsonpath='{range .items[*]}{.spec.storageClassName}:{.status.phase}{"\n"}{end}' 2>/dev/null | grep '^:Pending$' || true)
  if [[ -z "$pending" ]]; then
    return 0
  fi

  warn "Detected pending PVCs without storageClass in namespace ${NAMESPACE}; resetting stuck Gitea release"
  if command -v helm >/dev/null 2>&1; then
    helm uninstall "$RELEASE_NAME" -n "$NAMESPACE" >/dev/null 2>&1 || true
  fi
  kubectl -n "$NAMESPACE" delete pvc gitea-shared-storage data-gitea-postgresql-ha-postgresql-0 data-gitea-postgresql-ha-postgresql-1 data-gitea-postgresql-ha-postgresql-2 valkey-data-gitea-valkey-cluster-0 valkey-data-gitea-valkey-cluster-1 valkey-data-gitea-valkey-cluster-2 >/dev/null 2>&1 || true
}

release_exists() {
  command -v helm >/dev/null 2>&1 && helm status "$RELEASE_NAME" -n "$NAMESPACE" >/dev/null 2>&1
}

gitea_workload_exists() {
  kubectl -n "$NAMESPACE" get deploy "$RELEASE_NAME" >/dev/null 2>&1
}

apply_manifest_fallback() {
  if release_exists || gitea_workload_exists; then
    warn "Helm resources detected for release '$RELEASE_NAME'; skipping fallback manifest to avoid immutable selector/port conflicts"
    return 0
  fi

  warn "Applying fallback manifest"
  local node_selector_block=""
  if [[ -n "$NODE_SELECTOR" ]]; then
    node_selector_block=$(cat <<EOF
      nodeSelector:
        kubernetes.io/hostname: ${NODE_SELECTOR}
EOF
)
  fi

  cat <<EOF | kubectl apply -n "$NAMESPACE" -f -
apiVersion: apps/v1
kind: Deployment
metadata:
  name: gitea
spec:
  replicas: 1
  selector:
    matchLabels:
      app: gitea
  template:
    metadata:
      labels:
        app: gitea
    spec:
${node_selector_block}
      containers:
        - name: gitea
          image: ${IMAGE_REPO}:${IMAGE_TAG}
          ports:
            - name: http
              containerPort: 3000
            - name: ssh
              containerPort: 2222
          env:
            - name: GITEA__server__ROOT_URL
              value: "http://gitea.${NAMESPACE}.svc.cluster.local:3000"
---
apiVersion: v1
kind: Service
metadata:
  name: gitea-http
spec:
  selector:
    app: gitea
  ports:
    - name: http
      port: 3000
      targetPort: 3000
---
apiVersion: v1
kind: Service
metadata:
  name: gitea-ssh
spec:
  selector:
    app: gitea
  ports:
    - name: ssh
      port: 2222
      targetPort: 2222
EOF
}

ACTION="${1:-deploy}"
case "$ACTION" in
  deploy|"") ;;
  *) usage; die "Unknown action '$ACTION'" ;;
esac

log "Deploying Gitea to namespace '$NAMESPACE' (mode=$MODE)"
reset_stuck_k3s_release
ensure_k3s_storage_layout
prepare_k3s_host_permissions
setup_knoe_db_for_gitea
if deploy_with_helm; then
  log "Gitea deployed via Helm"
else
  apply_manifest_fallback
  log "Gitea deployed via manifest fallback"
fi

log "Waiting for deployment rollout..."
kubectl -n "$NAMESPACE" rollout status deploy/gitea --timeout=10m

log "Done. Service endpoints:"
kubectl -n "$NAMESPACE" get svc gitea-http gitea-ssh