Game Server Slash Command BOT

ゲームサーバーの「起動/終了/再起動/状態確認」を実行できるdiscordbot

Slash Command

/gssc [command] [game]

commandには実行されるコマンドを記述します。

command	実行される内容	例
start	サーバーを起動	/gssc start valheim
stop	サーバーを終了	/gssc stop valheim
restart	サーバーを再起動	/gssc restart valheim
status	サーバーの状態	/gssc status valheim
list	サーバーの一覧表示	/gssc list

gameには起動するゲームサーバーのaliasを記述します。

Game Server Settings

以下のようなjson形式で記述し、game_servers.jsonとしてGCP上のBUCKEt_NAMEバケットに配置します。

{
  "valheim": {
    "name": "Valheim",
    "instance_name": "gcp insrance name",
    "zone": "asia-northeast1-b"
  },
  "minecraft-vanila": {
    "name": "Minecraft Vanila",
    "instance_name": "gcp insrance name",
    "zone": "asia-northeast1-b"
  }
}

Setup Guide

1. Create Discord Application

Using discord developers.

2. GCP Settings

REGION=asia-northeast1
BUCKET_NAME=your-bucket-name
POOL_ID=your-pool-id
PROVIDER_ID=your-provider-id
gcloud init
gsutil mb -b on -c standard -l ${REGION} gs://${BUCKET_NAME}
gcloud services enable iamcredentials.googleapis.com
gcloud iam service-accounts create terraform --display-name="terraform"
# Service Accountに必要な権限を付与: Storage Object Admin, Cloud Functions Admin
SERVICE_ACCOUNT_EMAIL=your-service-account-email
GITHUB_REPOSITORY="github-user-name/github-repository-name"
PROJECT_NUMBER=$(gcloud projects list --format="table(projectNumber,projectId)" | grep $(gcloud config get-value project) | cut -d ' ' -f1)
gcloud iam workload-identity-pools create ${POOL_ID} --loation="global" --description="gssc-pool"
gcloud iam workload-identity-pools providers create-oidc ${PROVIDER_ID} \
  --location="global" \
  --workload-identity-pool=${POOL_ID} \
  --attribute-mapping="google.subject=assertion.sub,attribute.repository=assertion.repository,attribute.actor=assertion.actor" \
  --issuer-uri="https://token.actions.githubusercontent.com"
gcloud iam service-accounts add-iam-policy-binding \
  "${SERVICE_ACCOUNT_EMAIL}" \
  --role="roles/iam.workloadIdentityUser" \
  --member="principalSet://iam.googleapis.com/projects/${PROJECT_NUMBER}/locations/global/workloadIdentityPools/${POOL_ID}/subject/attribute.repository/${GITHUB_REPOSITORY}"

コマンドでうまく行かない場合、 GitHub Actions で OIDC を使用して GCP 認証を行う を見て、ポチポチしてください。

3. Github Actinos Settings

Variables

Name	Value
PROJECT_ID	GCP Project Number
POOL_ID	GCP Pool ID
PROVIDER_ID	GCP Provider ID
SERVICE_ACCOUNT_EMAIL	GCP Service Account Email
REGION	GCP Region
BUCKET_NAME	GCP Bucket Name
DISCORD_BOT_ID	Discord Bot ID
CLIENT_PUBLIC_KEY	Discord Bot Public Key

Secrets

Name	Value
DISCORD_TOKEN	Discord Bot Token
DISCORD_GUILD	Discord Guild ID

参考情報

• [https://blog.g-gen.co.jp/entry/using-terraform-via-github-actions]
• [https://zenn.dev/sway/articles/terraform_biginner_varliable]
• [https://zenn.dev/hiroga/articles/discord-bot-by-gcp-terraform-circleci]
• [https://sterfield.co.jp/blog/17682/]