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https://github.com/moukoublen/testbed

testbed
https://github.com/moukoublen/testbed

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testbed

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README 

        
# Go service boilerplate



The boilerplate consists of:

* Go code with [chi](https://github.com/go-chi/chi) http router, [zerolog](https://github.com/rs/zerolog) logging, [knadh/koanf](github.com/knadh/koanf) config library and [testify](github.com/stretchr/testify). Basic code infra with http setup and request and response logger (configurable), logging setup, config setup and graceful shutdown.

* Makefile targets for local installation of external tools (`staticcheck`, `golangci-lint`, `goimports`, `gofumpt`, `gojq`, `air`).

* Makefile targets for linting (installing all necessary tools locally), building, testing, and local run (docker compose or native).

* [GitHub Actions](https://github.com/features/actions) for linter checks and tests on each pr.

* [Dependabot](https://docs.github.com/en/code-security/dependabot/dependabot-security-updates/configuring-dependabot-security-updates) setup for updating dependencies.

* [Visual Studio Code](https://code.visualstudio.com/) settings, tasks and launch configuration for building, debugging and testing the code.

* Docker compose and development Dockerfile with hot-rebuild (using [air](https://github.com/cosmtrek/air)) and dlv debug server.

* Production Dockerfile



## How to use

1. Click `Use this template` from this repo github page, and choose your destination repo/name (e.g. `github.com/glendale/service`)

2. Clone **your** repo locally and run `./scripts/rename` giving your new package name and main cmd name. E.g. `./scripts/rename github.com/glendale/service service`.

3. Commit the renaming and you are ready to start.



## Go package and file structure



> Every local package that collides with a golang std package is named with `x` postfix. For example `.../internal/httpx` or `.../internal/logx`. By doing this cheat you can avoid putting aliases when you need both of those and you can take advantage of package autocomplete/autoimport features more easily than having colliding names.



| Package            | Description    |

|--------------------|-----------------------------------------|

| `cmd/*/main.go`    | main function that is intended to glue together the most core level components like: configuration, http server and router, logs initialization, db connections (if any), the `App` and finally the `Main` struct (`/internal/exec.go`) that handles the long running / signal handling / graceful shutdown of the service. |

| `internal/exec.go` | the `Main` struct that wraps the long running / signal handling / graceful shutdown of the service |

| `internal/config`  | this package contain the initialization of `koanf` config. |

| `internal/httpx`   | this package contains: the setup of the `chi` router, some helpers functions for parsing/writing http request and http response and some middlewares like for logging each request/response. |

| `internal/logx`   | this package contains the setup/init function for `zerolog` logger. |



| Folder/File        | Description    |

|--------------------|-----------------------------------------|

| `deployments`      | this folder is intended to hold everything regarding deployment (e.g. helm/kubernetes etc). Inside `compose` directory a `docker-compose.yml` file is included that is intended for local development. |

| `build/docker`     | this folder contains production-like docker file as well as a local development one. |



## Make file targets



### Build, Debug and Local Deploy Targets



#### `build`

Builds all binaries under `./cmd` (one for each directory) and outputs the binaries into `./output` folder using this patter `./cmd/ -> ./output/`.

___



#### `cmd.`

Builds a specific cmd directory `` and outputs the binary into `./output` folder using this pattern `./cmd/ -> ./output/`.

___



#### `clean`

Deletes `./output` folder.

___



#### `compose-up`

Deploys (rebuilds and recreates) the docker compose file `deployments/compose/docker-compose.yml` in attached mode. This docker compose file is intended for local development.


It uses the docker file `build/docker/debug.Dockerfile` and runs `air` target (see below), including hot-reload (rebuild on changes) and debug server.

___



#### `compose-down`

Stops (if started) the containers specified by the docker compose file `deployments/compose/docker-compose.yml` removes containers, cleans up the volumes and delete local docker images.

___



#### `air`

Installs (if needed) [air](https://github.com/cosmtrek/air) under `TOOLS_BIN` folder (default is `./.tools/bin`) and runs `air -c .air.toml`. 


Air watches for code file changes and rebuilds the binary according to the configuration `.air.toml`. 


Current air configuration executes `cmd.testbed` target (on each file change) and then runs the `./build/dlv` that starts the debug server (`dlv exec`) with the produced binary.

___



#### `image`

Builds the docker image using the docker file `./build/docker/Dockerfile`. 


This docker file is intended to be used as a production image. 


Image name and tag are specified by `IMAGE_NAME` and `IMAGE_TAG`. Default values can be overwritten during execution (eg `make IMAGE_NAME=myimage IMAGE_TAG=1.0.0 image`).

___



### Util Targets



#### `mod`

Runs go mod [tidy](https://go.dev/ref/mod#go-mod-tidy) and [verify](https://go.dev/ref/mod#go-mod-verify).

___



#### `vendor`

Runs [go mod vendor](https://go.dev/ref/mod#go-mod-vendor) that downloads all dependencies into `./vendor` folder.

___



#### `env`

Prints information regarding the local environment. More specifically: go env, all go packages and folders, and the specified tools bin directory.

___



#### `git-reset`

Full hard reset to HEAD. Cleans up all untracked files and restore all staged and un-staged changes.

___



### Tests and Linters Targets



#### `test`

Runs go [test](https://pkg.go.dev/cmd/go/internal/test) with race conditions and prints cover report.

___



#### `tools`

Installs (if needed) all tools (goimports, staticcheck, gofumpt, etc) under `TOOLS_BIN` folder (default is `./.tools/bin`).

___



#### `checks`

Runs all default checks (`vet`, `staticcheck`, `gofumpt`, `goimports`, `golangci-lint`).

___



#### `vet`

Runs go [vet](https://pkg.go.dev/cmd/vet).

___



#### `gofumpt`

Installs (if needed) [gofumpt](https://github.com/mvdan/gofumpt) under `TOOLS_BIN` folder (default is `./.tools/bin`) and runs `gofumpt` for each folder. 


If `gofumpt` finds files that need fix/format it displays those files as list and the target fails (_exit 1_).

___



#### `gofumpt.display`

In case of `gofumpt` fails this target can be used to display the necessary changes. It runs `gofumpt -d` to display the needed changes that can be applied with `make gofumpt.fix`.

___



#### `gofumpt.fix`

Runs `gofumpt -w` to fix/format files (that need fix).

___



#### `goimports`

Installs (if needed) [goimports](https://pkg.go.dev/golang.org/x/tools/cmd/goimports) under `TOOLS_BIN` folder (default is `./.tools/bin`) and runs `goimports` for each folder. 


If `goimports` finds files that need fix/format it displays those files as list and the target fails (_exit 1_).

___



#### `goimports.display`

In case of `goimports` fails this target can be used to display the necessary changes. It runs `goimports -d` to display the needed changes that can be applied with `make goimports.fix`.

___



#### `goimports.fix`

Runs `goimports -w` to fix files (that need fix).

___



#### `staticcheck`

Installs (if needed) [staticcheck](https://staticcheck.io/) under `TOOLS_BIN` folder (default is `./.tools/bin`) and runs `staticcheck` using all [checks](https://staticcheck.io/docs/checks) excluding [ST1000](https://staticcheck.io/docs/checks/#ST1000). 


If issues are found the target fails (due to `staticcheck` exit status).

___



#### `golangci-lint`

Installs (if needed) [golangci-lint](https://golangci-lint.run/) under `TOOLS_BIN` folder (default is `./.tools/bin`) and runs `golangci-lint`. 


If issues are found the target fails (due to `golangci-lint` exit status).

___