Add a Gradle task to deploy the proxy (#214)

Also refactored some common code regarding the mapping between
environments and projects.

The script to update proxy deployments and kill all pods are lifted from
https://cs.corp.google.com/piper///depot/google3/domain/registry/tools/bashrc?l=163

appengine_war.gradle

@@ -12,25 +12,12 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-def environments = ['production', 'sandbox', 'alpha', 'crash']
-
-def projects = ['production': 'domain-registry',
-                'sandbox'   : 'domain-registry-sandbox',
-                'alpha'     : 'domain-registry-alpha',
-                'crash'     : 'domain-registry-crash']
-
-
-def environment = rootProject.findProperty("environment")
-if (environment == null) {
-    environment = 'production'
-}
-def gcpProject = projects[environment]
-if (gcpProject == null) {
-    throw new GradleException("-Penvironment must be one of ${environments}.")
-}
-
+apply from: "${rootDir.path}/projects.gradle"
 apply plugin: 'war'
 
+def environment = rootProject.environment
+def gcpProject = rootProject.gcpProject
+
 // Set this directory before applying the appengine plugin so that the
 // plugin will recognize this as an app-engine standard app (and also
 // obtains the appengine-web.xml from the correct location)
@@ -77,8 +64,8 @@ appengine {
     deploy {
         // appengineDeployAll task requires the version to be set. So,
         // this config lets gcloud select a version name when deploying
-        // to alpha from our workstation.
-        if (environment != 'production' && environment != 'sandbox') {
+        // to alpha or sandbox from our workstation.
+        if (!rootProject.prodOrSandboxEnv) {
             version = 'GCLOUD_CONFIG'
         }
         projectId = gcpProject
@@ -91,4 +78,4 @@ dependencies {
 
 rootProject.deploy.dependsOn appengineDeployAll
 rootProject.stage.dependsOn appengineStage
-appengineDeploy.dependsOn rootProject.verifyDeployment
+appengineDeployAll.dependsOn rootProject.verifyDeployment

build.gradle

@@ -109,10 +109,10 @@ task deploy {
 
 task verifyDeployment {
   group = 'deployment'
-  description = 'Ensure that one can only deploy to alpha.'
+  description = 'Ensure that one cannot deploy to production or sandbox.'
   doFirst {
-    if (rootProject.findProperty("environment") != 'alpha') {
-      throw new GradleException("Can only deploy to alpha.");
+    if (rootProject.prodOrSandboxEnv) {
+      throw new GradleException("Cannot deploy to production or sandbox.");
     }
   }
 }

projects.gradle

@@ -0,0 +1,37 @@
+// Copyright 2019 The Nomulus Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+def environments = ['production', 'sandbox', 'alpha', 'crash']
+
+def projects = ['production': 'domain-registry',
+                'sandbox'   : 'domain-registry-sandbox',
+                'alpha'     : 'domain-registry-alpha',
+                'crash'     : 'domain-registry-crash']
+
+
+def environment = rootProject.findProperty("environment")
+
+if (environment == null) {
+    environment = 'production'
+}
+
+def gcpProject = projects[environment]
+
+if (gcpProject == null) {
+    throw new GradleException("-Penvironment must be one of ${environments}.")
+}
+
+rootProject.ext.environment = environment
+rootProject.ext.gcpProject = gcpProject
+rootProject.ext.prodOrSandboxEnv = ['production', 'sandbox'].contains(environment)

proxy/build.gradle

@@ -18,6 +18,20 @@ task buildProxyImage(dependsOn: deployJar, type: Exec) {
   commandLine 'docker', 'build', '-t', 'proxy', '.'
 }
 
+task deployProxy(dependsOn: [buildProxyImage, ':verifyDeployment']) {
+  doLast {
+    exec {
+      commandLine 'docker', 'tag', 'proxy', "gcr.io/${rootProject.gcpProject}/proxy"
+    }
+    exec {
+      commandLine 'docker', 'push', "gcr.io/${rootProject.gcpProject}/proxy"
+    }
+    exec {
+      commandLine './deploy-proxy-for-env.sh', "${rootProject.environment}"
+    }
+  }
+}
+
 project.build.dependsOn buildProxyImage
 
 dependencies {

proxy/deploy-proxy-for-env.sh

@@ -0,0 +1,44 @@
+#!/bin/bash
+# Copyright 2019 The Nomulus Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# This script builds the GAE artifacts for a given environment, moves the
+# artifacts for all services to a designated location, and then creates a
+
+if [[ $# -ne 1 ]]; then
+ echo "Usage: $0 alpha|crash"
+ exit 1
+fi
+
+environment=${1}
+project="domain-registry-"${environment}
+current_context=$(kubectl config current-context)
+while read line
+do
+  parts=(${line})
+  echo "Updating cluster ${parts[0]} in zone ${parts[1]}..."
+  gcloud container clusters get-credentials "${parts[0]}" \
+    --project "${project}" --zone "${parts[1]}"
+  # Kills all running pods, new pods created will be pulling the new image.
+  sed s/GCP_PROJECT/${project}/g "./kubernetes/proxy-deployment-${environment}.yaml" | \
+  kubectl replace -f -
+  # Alpha does not have canary
+  if [[ ${environment} != "alpha" ]]
+  then
+  sed s/GCP_PROJECT/${project}/g "./kubernetes/proxy-deployment-${environment}-canary.yaml" | \
+  kubectl replace -f -
+  fi
+  kubectl delete pods --all
+done < <(gcloud container clusters list --project ${project} | grep proxy-cluster)
+kubectl config use-context "$current_context"