feat: s3cmd Docker image

.dockerignore

@@ -0,0 +1 @@
+.DS_Store

.github/workflows/main.yml

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+name: main
+
+on:
+  push:
+    branches:
+      - main
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  main:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+      - name: Log in to the Container registry
+        uses: docker/login-action@65b78e6e13532edd9afa3aa52ac7964289d1a9c1
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@9ec57ed1fcdbf14dcef7dfbe97b2010124a938b7
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+      - name: Run Buildx
+        run: |
+          docker buildx build \
+          --push \
+          --platform=linux/amd64,linux/arm64,linux/armhf \
+          -t ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest -f ./Dockerfile ./

.gitignore

@@ -1,52 +1 @@
-# Prerequisites
-*.d
-
-# Object files
-*.o
-*.ko
-*.obj
-*.elf
-
-# Linker output
-*.ilk
-*.map
-*.exp
-
-# Precompiled Headers
-*.gch
-*.pch
-
-# Libraries
-*.lib
-*.a
-*.la
-*.lo
-
-# Shared objects (inc. Windows DLLs)
-*.dll
-*.so
-*.so.*
-*.dylib
-
-# Executables
-*.exe
-*.out
-*.app
-*.i*86
-*.x86_64
-*.hex
-
-# Debug files
-*.dSYM/
-*.su
-*.idb
-*.pdb
-
-# Kernel Module Compile Results
-*.mod*
-*.cmd
-.tmp_versions/
-modules.order
-Module.symvers
-Mkfile.old
-dkms.conf
+.DS_Store

Dockerfile

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+FROM alpine:3
+
+LABEL org.opencontainers.image.source = "https://github.com/dataforgoodfr/d4g-s3cmd"
+LABEL org.opencontainers.image.authors = "Data For Good"
+
+RUN apk update
+RUN apk add python3 py-pip py-setuptools git ca-certificates
+
+RUN git clone https://github.com/s3tools/s3cmd.git /opt/s3cmd
+RUN ln -s /opt/s3cmd/s3cmd /usr/bin/s3cmd
+
+WORKDIR /opt
+
+ADD ./entrypoint.sh /opt/entrypoint.sh
+
+WORKDIR /opt
+ENTRYPOINT ["/opt/entrypoint.sh"]

README.md

@@ -1,2 +1,13 @@
 # d4g-s3cmd
-s3cmd Dockerizing for dataforgood
+
+This repository is an attempt at creating a standard Docker image for our use of `s3cmd` at @dataforgoodfr.
+
+The result is a lightweight image that can be configured fully with environment variables.
+We use Scaleway so some configuration is tailored to their platform (notably the `host_base` and `host_bucket` configurations).
+
+## Usage
+Usage is documented in-script, to display the help menu use
+
+```
+docker run -it --rm ghcr.io/dataforgoodfr/d4g-s3cmd:latest help
+```

entrypoint.sh

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+#!/bin/sh
+
+set -e pipefail
+
+usage() {
+  cat <<EOF
+USAGE docker run -it --rm -v \$(pwd):/opt/local \\
+  -e ACCESS_KEY=<access_key> \\
+  -e SECRET_KEY=<secret_key> \\
+  -e S3_PATH="s3://<bucket_name>/<path>" \\
+  -e HOST_BASE="fr-par.scw.cloud" \\
+  -e BUCKET_REGION="fr-par" \\
+  -e DEBUG=true \\
+  ghcr.io/dataforgoodfr/d4g-s3cmd:latest \\
+  [push|pull|help]
+
+This script will push or pull any directory mapped to /opt/local to/from an S3 bucket.
+This image has been built with Scaleway's object storage in-mind, some configurations might
+be compatible with that platform only.
+
+Supported environment variables configurations :
+ACCESS_KEY : AWS access key (Required)
+SECRET_KEY : AWS secret key (Required)
+S3_PATH : S3 path to sync to/from (Required)
+HOST_BASE : AWS host base (Optional)
+BUCKET_REGION : AWS bucket region (Optional)
+DEBUG : Print configuration before running (Optional)
+EOF
+  exit 1
+}
+
+setup_colors() {
+  if [[ -t 2 ]] && [[ -z "${NO_COLOR-}" ]] && [[ "${TERM-}" != "dumb" ]]; then
+    # shellcheck disable=SC2034
+    NOCOLOR='\033[0m' RED='\033[0;31m' GREEN='\033[0;32m' ORANGE='\033[0;33m' BLUE='\033[0;34m' PURPLE='\033[0;35m' CYAN='\033[0;36m' YELLOW='\033[1;33m'
+  else
+    # shellcheck disable=SC2034
+    NOCOLOR='' RED='' GREEN='' ORANGE='' BLUE='' PURPLE='' CYAN='' YELLOW=''
+  fi
+}
+
+info() {
+  echo -e "${GREEN}$*${NOCOLOR}"
+}
+
+error() {
+  echo -e "${RED}$*${NOCOLOR}"
+}
+
+setup_colors
+if ( $1 == "help" ); then
+  usage
+fi
+
+for $VAR in ACCESS_KEY SECRET_KEY S3_PATH; do
+    if [ -z "${!VAR}" ]; then
+        error "$VAR not set."
+        usage
+    fi
+done
+
+echo "" >> /.s3cfg
+echo "use_https = True" >> /.s3cfg
+echo "access_key = ${ACCESS_KEY}" >> /.s3cfg
+echo "secret_key = ${SECRET_KEY}" >> /.s3cfg
+if [ -z "${HOST_BASE}" ]; then
+    echo "host_base = ${HOST_BASE}" >> /.s3cfg
+fi
+if [ -z "${HOST_BUCKET}" ]; then
+  echo "host_bucket = ${HOST_BUCKET}" >> /.s3cfg
+fi
+if [ -z "${BUCKET_REGION}" ]; then
+  echo "bucket_location = ${BUCKET_REGION}" >> /.s3cfg
+fi
+
+if [ -z $DEBUG ]; then
+  info "Using configuration"
+  cat /.s3cfg
+fi
+
+S3CMD_PATH=/opt/s3cmd/s3cmd
+if ( $1 == "push" ); then
+  ${S3CMD_PATH} --config=/.s3cfg sync /opt/local ${S3_PATH}
+fi
+
+if ( $1 == "pull" ); then
+  ${S3CMD_PATH} --config=/.s3cfg sync /opt/local/ ${S3_PATH}
+fi