go/.devcontainer/devcontainer.json

{
  "name": "Go",
  "build": {
    "dockerfile": "Dockerfile",
    // Update the VARIANT arg to pick a version of Go
    "args": { "VARIANT": "1.14" }
  },
  "runArgs": ["--cap-add=SYS_PTRACE", "--security-opt", "seccomp=unconfined"],

  // Set *default* container specific settings.json values on container create.
  "settings": {
    "terminal.integrated.shell.linux": "/bin/bash",
    "go.useLanguageServer": true,
    "[go]": {
      "editor.formatOnSave": true,
      "editor.codeActionsOnSave": {
        "source.organizeImports": true
      },
      // Optional: Disable snippets, as they conflict with completion ranking.
      "editor.snippetSuggestions": "none"
    },
    "[go.mod]": {
      "editor.formatOnSave": true,
      "editor.codeActionsOnSave": {
        "source.organizeImports": true
      }
    },
    "gopls": {
      // Add parameter placeholders when completing a function.
			"usePlaceholders": true,
			// the completion engine is allowed to make suggestions for packages that you do not currently import.
			"completeUnimported": true,

      // If true, enable additional analyses with staticcheck.
      // Warning: This will significantly increase memory usage.
      "staticcheck": true
    },
    "go.lintTool": "golangci-lint"
  },

  // 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": [9000],

  // Use 'postCreateCommand' to run commands after the container is created.
  // "postCreateCommand": "go version",

  // Uncomment to connect as a non-root user. See https://aka.ms/vscode-remote/containers/non-root.
  "remoteUser": "vscode"
}