Initial release

.github/workflows/docker-build.yml

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+name: Build and Push Docker Image
+
+on:
+  push:
+    tags:
+      - 'v*' # Udløser workflowet ved tags, der matcher mønsteret v*
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: read # For at læse repository-indhold
+      packages: write # For at uploade Docker-image til GHCR
+
+    steps:
+      - name: Tjek repository ud
+        uses: actions/checkout@v3
+
+      - name: Log ind på GitHub Container Registry
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Opsæt Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Byg og upload Docker-image
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          push: true
+          tags: |
+            ghcr.io/${{ github.repository_owner }}/${{ github.event.repository.name }}:${{ github.ref_name }}
+            ghcr.io/${{ github.repository_owner }}/${{ github.event.repository.name }}:latest

.gitignore

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+.env
+.idea

Dockerfile

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+FROM minio/mc:latest
+
+WORKDIR /app
+
+COPY entrypoint.sh /app/entrypoint.sh
+RUN chmod +x /app/entrypoint.sh
+
+ENTRYPOINT ["/app/entrypoint.sh"]

entrypoint.sh

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+#!/bin/bash
+
+# Load environment variables from .env file if it exists
+if [ -f "/app/.env" ]; then
+    echo "Loading environment variables from .env file"
+    export $(grep -v '^#' /app/.env | xargs)
+fi
+
+# Function to validate environment variables
+validate_env() {
+    if [ -z "$1" ]; then
+        echo "Error: Required environment variable $2 is not set."
+        exit 1
+    fi
+}
+
+# Validate essential environment variables
+validate_env "$SOURCE_ENDPOINT" "SOURCE_ENDPOINT"
+validate_env "$SOURCE_ACCESS_KEY" "SOURCE_ACCESS_KEY"
+validate_env "$SOURCE_SECRET_KEY" "SOURCE_SECRET_KEY"
+validate_env "$SOURCE_BUCKET" "SOURCE_BUCKET"
+
+validate_env "$DEST_ENDPOINT" "DEST_ENDPOINT"
+validate_env "$DEST_ACCESS_KEY" "DEST_ACCESS_KEY"
+validate_env "$DEST_SECRET_KEY" "DEST_SECRET_KEY"
+validate_env "$DEST_BUCKET" "DEST_BUCKET"
+
+# Configure mc aliases for source and destination
+mc alias set source "$SOURCE_ENDPOINT" "$SOURCE_ACCESS_KEY" "$SOURCE_SECRET_KEY"
+mc alias set dest "$DEST_ENDPOINT" "$DEST_ACCESS_KEY" "$DEST_SECRET_KEY"
+
+# Use TIMESTAMP_FILE environment variable, or default to /app/last_sync_time
+TIMESTAMP_FILE=${TIMESTAMP_FILE:-"/app/last_sync_time"}
+SYNC_INTERVAL=${SYNC_INTERVAL:-60}
+
+# Validate connectivity to source and destination buckets
+echo "Validating connectivity to source bucket..."
+mc ls source/"$SOURCE_BUCKET" > /dev/null || { echo "Error: Unable to access source bucket."; exit 1; }
+
+echo "Validating connectivity to destination bucket..."
+mc ls dest/"$DEST_BUCKET" > /dev/null || { echo "Error: Unable to access destination bucket."; exit 1; }
+
+# Start loop for continuous synchronization
+while true; do
+    # Retrieve the last sync timestamp, or start from scratch
+    if [ -f "$TIMESTAMP_FILE" ]; then
+        LAST_SYNC_TIME=$(cat "$TIMESTAMP_FILE")
+        echo "Starting synchronization from: $LAST_SYNC_TIME"
+        mc mirror --newer-than "$LAST_SYNC_TIME" source/"$SOURCE_BUCKET" dest/"$DEST_BUCKET"
+    else
+        echo "No timestamp found. Starting synchronization from scratch (all files)."
+        mc mirror source/"$SOURCE_BUCKET" dest/"$DEST_BUCKET"
+    fi
+
+    # Update the timestamp file with the current UTC time
+    date -u +"%Y-%m-%dT%H:%M:%SZ" > "$TIMESTAMP_FILE"
+
+    echo "Synchronization completed. Waiting for the next round in $SYNC_INTERVAL seconds..."
+
+    # Wait for the specified interval before the next synchronization
+    sleep "$SYNC_INTERVAL"
+done