やりたいこと

• GitHubにPushしたタイミングでGAEにデプロイする
• CircleCIを使って実現する

circleci/gcp-cli @1.8.2 を使ってGAEへデプロイする

• Orbクイックスタートガイドの通りやる

CircleCI側の設定

• BUILD SETTINGS >> Environment Variables に環境変数を設定する必要がある

  • GOOGLE_PROJECT_ID
  • GOOGLE_COMPUTE_ZONE
  • GCLOUD_SERVICE_KEY

• ServiceKeyはJsonをそのままValueにコピーする

{
"type": "service_account",
"project_id": "[PROJECT-ID]",
"private_key_id": "[KEY-ID]",
"private_key": "-----BEGIN PRIVATE KEY-----\n[PRIVATE-KEY]\n-----END PRIVATE KEY-----\n",
"client_email": "[SERVICE-ACCOUNT-EMAIL]",
"client_id": "[CLIENT-ID]",
"auth_uri": "https://accounts.google.com/o/oauth2/auth",
"token_uri": "https://accounts.google.com/o/oauth2/token",
"auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs",
"client_x509_cert_url": "https://www.googleapis.com/robot/v1/metadata/x509/[SERVICE-ACCOUNT-EMAIL]"
}

config.yaml

config.yaml

version: 2.1
orbs:
  gcp-cli: circleci/gcp-cli@1.8.2

jobs:
  test:
    working_directory: ~/workspace
    docker:
      - image: circleci/golang:1.12
        environment:
          GO111MODULE: "on"

    steps:
      - checkout
      - run: go test -v ./...
      - persist_to_workspace:
          root: .
          paths:
            - .

  build:
    working_directory: ~/workspace
    docker:
      - image: circleci/golang:1.12

    steps:
      - attach_workspace:
          at: .
      - restore_cache:
          name: Restore go modules cache
          keys:
            - v1-dependencies-{{ checksum "go.mod" }}
      - run: go build ./api/main.go
      - save_cache:
          name: Save go modules cache
          key: v1-dependencies-{{ checksum "go.mod" }}
          paths:
            - /go/pkg/mod/cache
      - persist_to_workspace:
          root: .
          paths:
            - .

  deploy-develop:
    working_directory: ~/workspace
    docker:
      - image: google/cloud-sdk:latest

    steps:
      - attach_workspace:
          at: .
      - gcp-cli/initialize
      - run:
          name: Deploy to Google App Engine
          command: |
            gcloud --quiet app deploy ./api/app-develop.yaml --project=$GOOGLE_PROJECT_ID --version=$CIRCLE_BRANCH
workflows:
  version: 2
  build:
    jobs:
      - test
      - build:
          requires:
            - test
      - deploy-develop:
          requires:
            - build

GitHub

• 今回のコード

Goでmap[string]interface{}を結合したいとき、 mergo ライブラリを使うとシンプルに結合できる。

https://github.com/imdario/mergo

map[string]interface{} を使う場合

m1 := map[string]interface{}{
    "a": 0,
    "b": 1,
}
m2 := map[string]interface{}{
    "a": 2,
    "c": 3,
}
mergo.Merge(&m1, m2)

// Will print
//map[string]interface {}{"a": 0, "b": 1, "c": 3}

mergo.Mergeの他に、 mergo.MergeWithOverwrite などもあるが略。

struct を使う場合

デフォルトの方法

type Foo struct {
    A string
    B int64
}

func main() {
    src := Foo{
        A: "one",
        B: 2,
    }
    dest := Foo{
        A: "two",
    }
    mergo.Merge(&dest, src)

// Will print
Foo{
  A: "two",
  B: 2,
}