컨테이너 이미지 - Ubuntu

GitHub : https://github.com/declue/docker_ubuntu

2019년에 만들었던 Docker 이미지입니다.

만든 목적은.. 기본 ubuntu 이미지에는 제가 자주 쓰는 도구가 너무 없어서 그냥 기본 빌트인을 시킬겸, base 이미지를 만들겸 제작하게 되었습니다.

GitHub Actions를 이용하여 ubuntu 버전별로 다음의 과정을 거쳐 이미지를 만들고 있습니다.

현재 아래와 같이 버전별로 제공이 되며, 한국어 지원 및 빌트인 패키지들이 아래와 같이 포함되어 있습니다.

사용은 아래와 같이 호출이 가능합니다.

docker pull ghcr.io/declue/docker_ubuntu:22.04

github를 참고하면 좋으나.. 여기에 Dockerfile를 한번 같이 공유합니다.

ARG BASE_IMAGE=ubuntu:22.04 
ARG BUILD_DATE=2025-03-05

FROM $BASE_IMAGE

# Set build date as an environment variable
ENV UBUNTU_UPDATED_TIME=${BUILD_DATE}
# Prevent interactive prompts during package installation
ENV DEBIAN_FRONTEND="noninteractive"

ENV TERM=xterm-256color

# Update system and install essential packages
RUN apt-get update && \
    apt-get install -y --no-install-recommends \
        apt-utils locales vim net-tools iputils-ping curl wget tree jq htop unzip zip traceroute \
        software-properties-common lsb-release ca-certificates dnsutils fontconfig  && \
    apt-get clean && rm -rf /var/lib/apt/lists/*

# Manually configure Korean locale (Fix for missing language-pack-ko)
RUN echo "ko_KR.UTF-8 UTF-8" > /etc/locale.gen && \
    locale-gen ko_KR.UTF-8 && \
    update-locale LANG=ko_KR.UTF-8
    
# Install Nanum fonts (with error handling for unsupported platforms)
RUN apt-get update && \
    apt-get install -y --no-install-recommends fonts-nanum fonts-nanum-coding || true && \
    fc-cache -fv && \
    apt-get clean && rm -rf /var/lib/apt/lists/*
    
# Set environment variables for Korean language support    
ENV LANG=ko_KR.UTF-8 
ENV LANGUAGE=ko_KR.UTF-8 
ENV LC_ALL=ko_KR.UTF-8

# Timezone
ENV TZ=Asia/Seoul 
RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone

또한 github actions도 다음과 같이 구성되었습니다. (매일 빌드)

name: Docker

on:
  push:
    branches: [ "main" ]
  pull_request:
    branches:
      - main
  workflow_dispatch:
  schedule:
    - cron: "0 15 * * *" # Run daily at 00:00 KST (15:00 UTC)

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}

jobs:
  build:
    strategy:
      matrix:
        ubuntu_version: ['24.04', '22.04', '20.04', '18.04', '16.04']
        
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write

    steps:
      - name: Checkout repository
        uses: actions/checkout@v3

      - name: Setup QEMU for multi-platform builds
        uses: docker/setup-qemu-action@v2

      - name: Setup Docker buildx
        uses: docker/setup-buildx-action@v1

      - name: Log into registry ${{ env.REGISTRY }}
        if: github.event_name != 'pull_request'
        uses: docker/login-action@v1
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract Docker metadata
        id: docker_meta
        uses: docker/metadata-action@v4
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tags: ${{ matrix.ubuntu_version}}

      - name: Get build time
        id: build_time
        run: echo "BUILD_TIME=$(date -u +"%Y-%m-%dT%H:%M:%SZ")" >> $GITHUB_ENV
          
      - name: Build and push Docker image
        id: build-and-push
        uses: docker/build-push-action@v2
        with:
          context: .
          push: ${{ github.event_name != 'pull_request' }}
          tags: ${{ steps.docker_meta.outputs.tags }}
          labels: ${{ steps.docker_meta.outputs.labels }}
          cache-from: type=gha
          cache-to: type=gha,mode=max
          build-args: |
            BASE_IMAGE=ubuntu:${{ matrix.ubuntu_version }}
            BUILD_DATE=${{ env.BUILD_TIME }}
          platforms: linux/amd64,linux/arm64,linux/arm/v7