Issue #1630: Update Dev Container configuration

- Update Elixer & Phoenix versions.
- Update devcontainer configuration to remove deprecated syntax.
- Migrate devcontainer-specific setup from Dockerfile to devcontainer
  feature config in line with current best practice.
- Verify able to compile.

.devcontainer/Dockerfile

@@ -1,63 +1,10 @@
 # Update the VARIANT arg in docker-compose.yml to pick an Elixir version: 1.9, 1.10, 1.10.4
-ARG VARIANT="1.12.3"
+ARG VARIANT="1.15.8"
 FROM elixir:${VARIANT}
 
-# This Dockerfile adds a non-root user with sudo access. Update the “remoteUser” property in
-# devcontainer.json to use it. More info: https://aka.ms/vscode-remote/containers/non-root-user.
-ARG USERNAME=vscode
-ARG USER_UID=1000
-ARG USER_GID=$USER_UID
-
-# Options for common package install script
-ARG INSTALL_ZSH="true"
-ARG UPGRADE_PACKAGES="true"
-ARG COMMON_SCRIPT_SOURCE="https://raw.githubusercontent.com/microsoft/vscode-dev-containers/v0.209.6/script-library/common-debian.sh"
-ARG COMMON_SCRIPT_SHA="d35dd1711454156c9a59cc41ebe04fbff681ca0bd304f10fd5b13285d0de13b2"
-
-# Optional Settings for Phoenix
-ARG PHOENIX_VERSION="1.6.2"
-
-# [Optional] Setup nodejs
-ARG NODE_SCRIPT_SOURCE="https://raw.githubusercontent.com/microsoft/vscode-dev-containers/main/script-library/node-debian.sh"
-ARG NODE_SCRIPT_SHA="dev-mode"
-ARG NODE_VERSION="none"
-ENV NVM_DIR=/usr/local/share/nvm
-ENV NVM_SYMLINK_CURRENT=true
-ENV PATH=${NVM_DIR}/current/bin:${PATH}
-
-# [Optional, Choice] Node.js version: none, lts/*, 16, 14, 12, 10
-ARG NODE_VERSION="none"
-
-# Install needed packages and setup non-root user. Use a separate RUN statement to add your own dependencies.
 RUN apt-get update \
   && export DEBIAN_FRONTEND=noninteractive \
-  && apt-get -y install --no-install-recommends curl ca-certificates 2>&1 \
+  && apt-get -y install --no-install-recommends build-essential cmake webp bash libncurses6 git python3 inotify-tools \
-  && curl -sSL ${COMMON_SCRIPT_SOURCE} -o /tmp/common-setup.sh \
-  && ([ "${COMMON_SCRIPT_SHA}" = "dev-mode" ] || (echo "${COMMON_SCRIPT_SHA} */tmp/common-setup.sh" | sha256sum -c -)) \
-  && /bin/bash /tmp/common-setup.sh "${INSTALL_ZSH}" "${USERNAME}" "${USER_UID}" "${USER_GID}" "${UPGRADE_PACKAGES}" \
-  #
-  # [Optional] Install Node.js for use with web applications
-  && if [ "$NODE_VERSION" != "none" ]; then \
-  curl -sSL ${NODE_SCRIPT_SOURCE} -o /tmp/node-setup.sh \
-  && ([ "${NODE_SCRIPT_SHA}" = "dev-mode" ] || (echo "${NODE_SCRIPT_SHA} */tmp/node-setup.sh" | sha256sum -c -)) \
-  && /bin/bash /tmp/node-setup.sh "${NVM_DIR}" "${NODE_VERSION}" "${USERNAME}"; \
-  fi \
-  #
-  # Install dependencies
-  && apt-get install -y build-essential \
-  #
-  # Clean up
-  && apt-get autoremove -y \
-  && apt-get clean -y \
-  && rm -rf /var/lib/apt/lists/* /tmp/common-setup.sh /tmp/node-setup.sh
-
-RUN su ${USERNAME} -c "mix local.hex --force \
-  && mix local.rebar --force \
-  && mix archive.install --force hex phx_new ${PHOENIX_VERSION}"
-
-RUN apt-get update \
-  && export DEBIAN_FRONTEND=noninteractive \
-  && apt-get -y install --no-install-recommends cmake webp bash libncurses6 git python3 inotify-tools \
   && apt-get autoremove -y \
   && apt-get clean -y \
   && rm -rf /var/lib/apt/lists/*

.devcontainer/devcontainer.json

@@ -1,12 +1,14 @@
-// For format details, see https://aka.ms/devcontainer.json. For config options, see the README at:
+// For format details, see https://aka.ms/devcontainer.json.
-// https://github.com/microsoft/vscode-dev-containers/tree/v0.209.6/containers/elixir-phoenix-postgres
 {
   "name": "Elixir, Phoenix, Node.js & PostgresSQL (Community)",
   "dockerComposeFile": "docker-compose.yml",
   "service": "elixir",
   "workspaceFolder": "/workspace",
 
-  // Set *default* container specific settings.json values on container create.
+  // Configure tool-specific properties.
+  "customizations": {
+    "vscode": {
+      // Container specific settings.json values.
       "settings": {
         "sqltools.connections": [
           {
@@ -21,25 +23,38 @@
           }
         ]
       },
-
+      // VSCode extensions to be automatically installed.
-  // Add the IDs of extensions you want installed when the container is created.
       "extensions": [
         "jakebecker.elixir-ls",
         "mtxr.sqltools",
         "mtxr.sqltools-driver-pg"
-  ],
+      ]
+    }
+  },
 
   // Use 'forwardPorts' to make a list of ports inside the container available locally.
   "forwardPorts": [4000, 4001, 5432],
 
+  // Features to add to the dev container. More info: https://containers.dev/features.
+  "features": {
+    "ghcr.io/devcontainers/features/common-utils:2": {
+      "installZsh": "true",
+      "username": "vscode",
+      "userUid": "1000",
+      "userGid": "1000",
+      "upgradePackages": "true"
+    },
+    "ghcr.io/devcontainers/features/git:1": {
+      "version": "latest",
+      "ppa": "false"
+    },
+    "ghcr.io/devcontainers/features/node:1": {
+      "version": "20"
+    }
+  },
+
   // Use 'postCreateCommand' to run commands after the container is created.
-  // "postCreateCommand": "mix deps.get",
+  "postCreateCommand": "mix local.hex --force && mix local.rebar --force && mix archive.install --force hex phx_new 1.7.18",
-  // "runArgs": ["--userns=keep-id", "--privileged"],
-  // "containerUser": "vscode",
-  // "containerEnv": {
-  // 	"HOME": "/home/vscode",
-  // },
-  // "workspaceMount": "source=${localWorkspaceFolder},target=/workspace,type=bind,Z",
 
   // Uncomment to connect as a non-root user. See https://aka.ms/vscode-remote/containers/non-root.
   "remoteUser": "vscode"

.devcontainer/docker-compose.yml

@@ -7,11 +7,7 @@ services:
       dockerfile: Dockerfile
       args:
         # Elixir Version: 1.9, 1.10, 1.10.4, ...
-        VARIANT: "1.13.1"
+        VARIANT: "1.15.8"
-        # Phoenix Version: 1.4.17, 1.5.4, ...
-        PHOENIX_VERSION: "1.6.6"
-        # Node Version: 10, 11, ...
-        NODE_VERSION: "16"
 
     volumes:
       - ..:/workspace:z