feat: simple example of Dockerfile w/ multi-stage build

This commit is contained in:
KEINOS 2022-05-17 14:09:50 +09:00 committed by mattn
parent aa1e904220
commit c122302862
2 changed files with 67 additions and 0 deletions

22
.github/workflows/docker.yaml vendored Normal file
View File

@ -0,0 +1,22 @@
name: dockerfile
on:
workflow_dispatch:
push:
tags:
- 'v*'
pull_request:
branches: [ master ]
jobs:
dockerfile:
name: Run Dockerfiles in examples
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v2
- name: Run example - simple
run: |
cd ./_example/simple
docker build -t simple .
docker run simple | grep 99\ こんにちわ世界099

View File

@ -0,0 +1,45 @@
# =============================================================================
# Multi-stage Dockerfile Example
# =============================================================================
# This is a simple Dockerfile that will build an image of scratch-base image.
# Usage:
# docker build -t simple:local . && docker run --rm simple:local
# =============================================================================
# -----------------------------------------------------------------------------
# Build Stage
# -----------------------------------------------------------------------------
FROM golang:alpine AS build
# Important:
# Because this is a CGO enabled package, you are required to set it as 1.
ENV CGO_ENABLED=1
RUN apk add --no-cache \
# Important: required for go-sqlite3
gcc \
# Required for Alpine
musl-dev
WORKDIR /workspace
COPY . /workspace/
RUN \
go mod init github.com/mattn/sample && \
go mod tidy && \
go install -ldflags="-s -w -extldflags \"-static\"" ./simple.go
RUN \
# Smoke test
set -o pipefail; \
/go/bin/simple | grep 99\ こんにちわ世界099
# -----------------------------------------------------------------------------
# Main Stage
# -----------------------------------------------------------------------------
FROM scratch
COPY --from=build /go/bin/simple /usr/local/bin/simple
ENTRYPOINT [ "/usr/local/bin/simple" ]