chore(build): add devcontainer (#699)

* chore: add devcontainer spec

* add post create command

* use golang base

* add sign off workaround

* automatically sign off

* fix missing comma

* fix unset of env vars

* fix github envvars

* automatically sign off

---------

Signed-off-by: GitHub <noreply@github.com>
Signed-off-by: DanielHabenicht <daniel-habenicht@outlook.de>
Co-authored-by: Pavel Boldyrev <627562+bpg@users.noreply.github.com>

.devcontainer/devcontainer.json

@@ -0,0 +1,28 @@
+// For format details, see https://aka.ms/devcontainer.json. For config options, see the
+// README at: https://github.com/devcontainers/templates/tree/main/src/universal
+{
+	"name": "Default Linux Universal",
+	// Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
+	"image": "mcr.microsoft.com/devcontainers/go",
+
+	// Features to add to the dev container. More info: https://containers.dev/features.
+	"features": {
+		"ghcr.io/devcontainers/features/terraform:1": {}
+	},
+	
+	// Workaround for https://github.com/orgs/community/discussions/75161
+	"postAttachCommand": "unset GIT_COMMITTER_NAME; unset GIT_COMMITTER_EMAIL;",
+
+	// Use 'forwardPorts' to make a list of ports inside the container available locally.
+	// "forwardPorts": [],
+
+	// Configure tool-specific properties.
+	// "customizations": {},
+	
+	// Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
+	// "remoteUser": "root"
+	
+	
+	// Use 'postCreateCommand' to run commands after the container is created.
+	"postCreateCommand": "make build"
+}

.vscode/settings.json

@@ -0,0 +1,3 @@
+{
+    "git.alwaysSignOff": true
+}