add devcontainer for codespaces

.devcontainer/Dockerfile

@@ -0,0 +1,19 @@
+# See here for image contents: https://github.com/microsoft/vscode-dev-containers/tree/v0.203.0/containers/go/.devcontainer/base.Dockerfile
+
+# [Choice] Go version (use -bullseye variants on local arm64/Apple Silicon): 1, 1.16, 1.17, 1-bullseye, 1.16-bullseye, 1.17-bullseye, 1-buster, 1.16-buster, 1.17-buster
+ARG VARIANT="1.17-bullseye"
+FROM mcr.microsoft.com/vscode/devcontainers/go:0-${VARIANT}
+
+# [Choice] Node.js version: none, lts/*, 16, 14, 12, 10
+ARG NODE_VERSION="none"
+RUN if [ "${NODE_VERSION}" != "none" ]; then su vscode -c "umask 0002 && . /usr/local/share/nvm/nvm.sh && nvm install ${NODE_VERSION} 2>&1"; fi
+
+# [Optional] Uncomment this section to install additional OS packages.
+RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
+    && apt-get -y install --no-install-recommends podman buildah skopeo 
+
+# [Optional] Uncomment the next line to use go get to install anything else you need
+# RUN go get -x <your-dependency-or-tool>
+
+# [Optional] Uncomment this line to install global node packages.
+# RUN su vscode -c "source /usr/local/share/nvm/nvm.sh && npm install -g <your-package-here>" 2>&1

.devcontainer/devcontainer.json

@@ -0,0 +1,47 @@
+// For format details, see https://aka.ms/devcontainer.json. For config options, see the README at:
+// https://github.com/microsoft/vscode-dev-containers/tree/v0.203.0/containers/go
+{
+	"name": "Go",
+	"build": {
+		"dockerfile": "Dockerfile",
+		"args": {
+			// Update the VARIANT arg to pick a version of Go: 1, 1.16, 1.17
+			// Append -bullseye or -buster to pin to an OS version.
+			// Use -bullseye variants on local arm64/Apple Silicon.
+			"VARIANT": "1-bullseye",
+			// Options
+			"NODE_VERSION": "none"
+		}
+	},
+	"runArgs": [
+		"--init",
+		"--cap-add=SYS_PTRACE",
+		"--security-opt",
+		"seccomp=unconfined"
+	],
+	// Set *default* container specific settings.json values on container create.
+	"settings": {
+		"go.toolsManagement.checkForUpdates": "local",
+		"go.useLanguageServer": true,
+		"go.gopath": "/go",
+		"go.goroot": "/usr/local/go"
+	},
+	// Add the IDs of extensions you want installed when the container is created.
+	"extensions": [
+		"golang.Go"
+	],
+	// Use 'forwardPorts' to make a list of ports inside the container available locally.
+	// "forwardPorts": [],
+	// Use 'postCreateCommand' to run commands after the container is created.
+	"postCreateCommand": "make setup",
+	// Comment out connect as root instead. More info: https://aka.ms/vscode-remote/containers/non-root.
+	"remoteUser": "vscode",
+	"features": {
+		"docker-in-docker": "latest",
+		"kubectl-helm-minikube": "latest",
+		"git": "latest",
+		"git-lfs": "latest",
+		"github-cli": "latest",
+		"azure-cli": "latest"
+	}
+}

Makefile

@@ -408,7 +408,7 @@ $(REPO_ROOT)/.git/hooks/pre-push:
 
 install-hooks: $(REPO_ROOT)/.git/hooks/pre-push ## installs git hooks
 
-setup: install-hooks ## performs common required repo setup
+setup: tools install-hooks ## performs common required repo setup
 
 version: ## prints the version
 	@echo $(VERSION)
@@ -438,7 +438,7 @@ gocov-xml: $(GOCOV_XML) ## Build gocov-xml
 $(GOFUMPT): $(TOOLS_DIR)/go.mod
 	cd $(TOOLS_DIR); go mod download; go build -tags=tools -o bin/gofumpt mvdan.cc/gofumpt
 
-gofmt gofumpt: $(GOFUMPT) ## Build gofumpt
+gofumpt: $(GOFUMPT) ## Build gofumpt
 
 $(GOLANGCI_LINT): $(TOOLS_DIR)/go.mod
 	cd $(TOOLS_DIR); go mod download; go build -tags=tools -o bin/golangci-lint github.com/golangci/golangci-lint/cmd/golangci-lint
@@ -458,4 +458,4 @@ mockgen: $(MOCKGEN) ## Build mockgen
 clean-tools: 
 	rm -r build/tools/bin
 
-tools: gocov gocov-xml go-junit-report golangci-lint gofmt ## Build bins for build tools
+tools: gocov gocov-xml go-junit-report golangci-lint gofumpt ## Build bins for build tools