fix(ci): add default deploy credential and host variables to Jenkins pipeline

Reviewed-on: http://gitea.lan:3000/robbond/pleskSaas/pulls/38

Dockerfile

@@ -17,7 +17,7 @@ WORKDIR /app
 COPY package.json package-lock.json ./
 RUN npm ci --omit=dev
 
-FROM cr.io/distroless/nodejs20-debian13 AS runner
+FROM node:20-bookworm-slim AS runner
 WORKDIR /app
 
 ENV NODE_ENV=production

Jenkinsfile

@@ -1,3 +1,8 @@
+def DEPLOY_SSH_CREDENTIAL_ID = env.DEPLOY_SSH_CREDENTIAL_ID ?: 'plesk-agency-deploy-key'
+def APP_HOST = env.APP_HOST ?: '192.168.68.89'
+def APP_USER = env.APP_USER ?: 'deploy'
+def DEPLOY_PATH = env.DEPLOY_PATH ?: '/opt/plesk-agency-portal'
+
 pipeline {
   // Build + deploy stages require Docker CLI/daemon access on the Jenkins node.
   // Ensure this label maps to an agent with Docker installed and usable.
@@ -68,30 +73,26 @@ pipeline {
 
     stage('Deploy') {
       steps {
-        script {
-          if (!env.DEPLOY_SSH_CREDENTIAL_ID) {
-            error 'DEPLOY_SSH_CREDENTIAL_ID is required'
-          }
-        }
-        sshagent(credentials: ["${env.DEPLOY_SSH_CREDENTIAL_ID}"]) {
+        withCredentials([sshUserPrivateKey(
+          credentialsId: DEPLOY_SSH_CREDENTIAL_ID,
+          keyFileVariable: 'SSH_KEY'
+        )]) {
           sh '''
             set -euo pipefail
-            : "${DEPLOY_SSH_HOST:?Missing DEPLOY_SSH_HOST}"
-            : "${DEPLOY_SSH_USER:?Missing DEPLOY_SSH_USER}"
-            : "${DEPLOY_PATH:?Missing DEPLOY_PATH}"
 
             rsync -az \
               docker-compose.prod.yml \
-              scripts/deploy-prod.sh \
-              scripts/smoke-check.sh \
-              scripts/rollback-prod.sh \
-              ${DEPLOY_SSH_USER}@${DEPLOY_SSH_HOST}:${DEPLOY_PATH}/
+              scripts/ \
+              -e "ssh -i $SSH_KEY" \
+              $APP_USER@$APP_HOST:$DEPLOY_PATH/
 
             docker save ${IMAGE_LATEST} ${IMAGE_BUILD} \
-              | ssh ${DEPLOY_SSH_USER}@${DEPLOY_SSH_HOST} 'docker load'
+              | ssh -i $SSH_KEY $APP_USER@$APP_HOST 'docker load'
 
-            ssh ${DEPLOY_SSH_USER}@${DEPLOY_SSH_HOST} \
-              "chmod +x ${DEPLOY_PATH}/deploy-prod.sh ${DEPLOY_PATH}/smoke-check.sh ${DEPLOY_PATH}/rollback-prod.sh && APP_IMAGE='${IMAGE_BUILD}' DEPLOY_PATH='${DEPLOY_PATH}' ${DEPLOY_PATH}/deploy-prod.sh"
+            ssh -i $SSH_KEY $APP_USER@$APP_HOST \
+              "cd $DEPLOY_PATH && chmod +x ./scripts/deploy-prod.sh ./scripts/smoke-check.sh ./scripts/rollback-prod.sh"
+
+            ssh -i $SSH_KEY $APP_USER@$APP_HOST "cd $DEPLOY_PATH && ./scripts/deploy-prod.sh"
           '''
         }
       }