デプロイ用のスクリプトを追加。

package.json

@@ -9,7 +9,9 @@
     "build:script": "echo Build script.",
     "build:docker": "npm shrinkwrap && node ./scripts/build-docker.js",
     "push": "npm run push:gcr",
-    "push:gcr": "node ./scripts/push-gcr.js"
+    "push:gcr": "node ./scripts/push-gcr.js",
+    "deploy": "npm run deploy:gke",
+    "deploy:gke": "node ./scripts/deploy-gke.js"
   },
   "author": "leak4mk0",
   "license": "WTFPL",

scripts/deploy-gke.js

@@ -0,0 +1,67 @@
+const spawnSync = require('child_process').spawnSync;
+const meta = require(`../package`);
+
+process.chdir(__dirname);
+process.chdir('..');
+
+const GCR_SUBDOMAINS = ['us.', 'eu.', 'asia.', ''];
+
+console.log('Get Kubernetes configuration.')
+const kubeConfigRet = spawnSync('kubectl', ['config', 'current-context'], { encoding: 'utf8' });
+if (kubeConfigRet.status) {
+  console.error('Error code:', kubeConfigRet.status);
+  return console.log();
+}
+const kubeConfigSplit = (kubeConfigRet.stdout || '').split('\n').join('').split('_');
+const kubeContext = { project: kubeConfigSplit[1], zone: kubeConfigSplit[2], cluster: kubeConfigSplit[3] };
+console.log('Kubernetes project:', kubeContext.project);
+console.log('Kubernetes zone:', kubeContext.zone);
+console.log('Kubernetes cluster:', kubeContext.cluster);
+console.log();
+
+console.log('Get Kubernetes deployments.')
+const kubeDeploymentsRet = spawnSync('kubectl', ['get', 'deployments', '-o=json'], { encoding: 'utf8' });
+if (kubeDeploymentsRet.status) {
+  console.error('Error code:', kubeDeploymentsRet.status);
+  return console.log();
+}
+const kubeDeployments = JSON.parse(kubeDeploymentsRet.stdout || '');
+console.log();
+
+console.log('Update Kubernetes deployments.');
+const dockerImageSource = `${meta.name}:${meta.version}`;
+const gcrUrl = GCR_SUBDOMAINS.find((s) => (kubeContext.zone.startsWith(s.replace(/\.$/, '')))) + 'gcr.io';
+const dockerImageTarget = `${gcrUrl}/${kubeContext.project}/${dockerImageSource}`;
+const dockerImageQuery = dockerImageTarget.replace(/:[^:]+$/, ':');
+console.log('Docker image source:', dockerImageSource);
+console.log('Docker image target:', dockerImageTarget);
+console.log('Docker image query:', dockerImageQuery);
+kubeDeployments.items.forEach((deployment) => {
+  deployment.spec.template.spec.containers.forEach((container) => {
+    if (!container.image.startsWith(dockerImageQuery)) {
+      return;
+    }
+    console.log('Deployment name:', deployment.metadata.name);
+    console.log('Container name:', container.name);
+    if (container.image !== dockerImageTarget) {
+      console.log('Update deployment image.');
+      const kubeUpdateArgs = [
+        'set', 'image', 'deployment', deployment.metadata.name, `${container.name}=${dockerImageTarget}`
+      ];
+      const kubeUpdateRet = spawnSync('kubectl', kubeUpdateArgs, { stdio: 'inherit' });
+      if (kubeUpdateRet.status) {
+        console.warn('Error code:', kubeUpdateRet.status);
+      }
+    } else {
+      console.log('Restart pod.');
+      const labelKeys = Object.keys(deployment.spec.template.metadata.labels);
+      const labelValues = labelKeys.map((k) => (deployment.spec.template.metadata.labels[k]));
+      const kubeRestartArgs = ['delete', 'pod', '-l', `${labelKeys[0]}=${labelValues[0]}`];
+      const kubeRestartRet = spawnSync('kubectl', kubeRestartArgs, { stdio: 'inherit' });
+      if (kubeRestartRet.status) {
+        console.warn('Error code:', kubeRestartRet.status);
+      }
+    }
+  });
+});
+console.log();