#はじめに
HerokuにGolangのアプリをデプロイする。
#環境情報
PC：Mac(CPUはintel製)
Go：1.17.6 ←Goのver大事。versionは1.16以降をインストールしてください。
開発エディタ：Visual Studio Code
#環境設定
HerokuCLI、GitCLIを利用するため、まだの人は下記からインストールしてください。また、アカウント作成も同時に済ませてください。
○Git CLI
https://git-scm.com/book/en/v2/Getting-Started-Installing-Git
○Heroku CLI
https://devcenter.heroku.com/ja/articles/heroku-cli
#Herokuアプリ作成
herokuにログイン
heroku login
heroku: Press any key to open up the browser to login or q to exit
› Warning: If browser does not open, visit
› https://cli-auth.heroku.com/auth/browser/***
heroku: Waiting for login...
Logging in... done
Logged in as me@example.com
Golangアプリケーション（サンプル）のダウンロード
git clone https://github.com/heroku/go-getting-started.git
cd go-getting-started
#ローカル実行
ローカル実行(失敗)
~/go/src/go-getting-started $ go run main.go
2022/02/11 17:37:35 $PORT must be set
exit status 1
→環境変数にPORTが設定されていないことが問題。下記コマンドで環境変数を設定
環境変数設定
~/go/src/go-getting-started $ export PORT=3000
ローカル実行（成功）
~/go/src/go-getting-started $ go run main.go
[GIN-debug] [WARNING] Running in "debug" mode. Switch to "release" mode in production.
- using env: export GIN_MODE=release
- using code: gin.SetMode(gin.ReleaseMode)
[GIN-debug] Loaded HTML Templates (4):
-
- header.tmpl.html
- index.tmpl.html
- nav.tmpl.html
[GIN-debug] GET /static/*filepath --> github.com/gin-gonic/gin.(*RouterGroup).createStaticHandler.func1 (2 handlers)
[GIN-debug] HEAD /static/*filepath --> github.com/gin-gonic/gin.(*RouterGroup).createStaticHandler.func1 (2 handlers)
[GIN-debug] GET / --> main.main.func1 (2 handlers)
[GIN-debug] Listening and serving HTTP on :3000
http://localhost:3000で実行。下記画面が出ればOK！！！
#サーバ実行
gitのローカルリポジトリcommit
~/go/src/go-getting-started $ git add ./
~/go/src/go-getting-started $ git commit -m "initial commit"
[main c71285d] initial commit
1 file changed, 1 insertion(+), 1 deletion(-)
herokuアプリ作成
heroku create
Creating polar-inlet-4930... done, stack is heroku-18
https://polar-inlet-4930.herokuapp.com/ | https://git.heroku.com/polar-inlet-4930.git
Git remote heroku added
herokuへデプロイ
git push heroku main
Enumerating objects: 521, done.
Counting objects: 100% (521/521), done.
Delta compression using up to 8 threads
Compressing objects: 100% (309/309), done.
Writing objects: 100% (521/521), 226.26 KiB | 45.25 MiB/s, done.
Total 521 (delta 141), reused 501 (delta 134)
remote: Compressing source files... done.
remote: Building source:
remote:
remote: -----> Go app detected
remote: -----> Fetching jq... done
remote:
remote: -----> Detected go modules - go.mod
remote:
remote: -----> Installing go1.12.1
remote: -----> Fetching go1.12.1.linux-amd64.tar.gz... done
remote: !! Installing package '.' (default)
remote: !!
remote: !! To install a different package spec add a comment in the following form to your `go.mod` file:
remote: !! // +heroku install ./cmd/...
remote: !!
remote: -----> Running: go install -v -tags heroku -mod=vendor .
remote: gopkg.in/bluesuncorp/validator.v5
remote: github.com/gin-gonic/gin/render
remote: github.com/manucorporat/sse
remote: github.com/mattn/go-colorable
remote: golang.org/x/net/context
remote: github.com/heroku/x/hmetrics
remote: github.com/heroku/x/hmetrics/onload
remote: github.com/gin-gonic/gin/binding
remote: github.com/gin-gonic/gin
remote: github.com/heroku/go-getting-started
remote:
remote: Compiled the following binaries:
remote: ./bin/go-getting-started
remote:
remote: -----> Discovering process types
remote: Procfile declares types -> web
remote:
remote: -----> Compressing...
remote: Done: 5.5M
remote: -----> Launching...
remote: Released v3
remote: https://go-on-heroku.herokuapp.com/ deployed to Heroku
remote:
remote: Verifying deploy... done.
To https://git.heroku.com/go-on-heroku.git
* [new branch] main -> main
heroku openでブラウザが開き、ローカルと同じ画面が出ればOKです！！！
#参考URL
https://devcenter.heroku.com/ja/articles/getting-started-with-go?singlepage=true