Feature/support proxy for freshclam

.github/workflows/auto-build-image.yml

@@ -0,0 +1,11 @@
+---
+name: Build Clam AV Every Week
+on:
+  schedule:
+    - cron: '0 4 * * 0'
+
+jobs:
+  create-docker-image:
+    name: Build a Docker image on Sunday at 4 am
+    uses: ./.github/workflows/build-image.yml
+    secrets: inherit

.github/workflows/build-image.yml

@@ -0,0 +1,49 @@
+---
+name: Build and Publish ClamAV Image
+on:
+    workflow_dispatch:
+    workflow_call:
+
+env:
+  DOCKER_NAME: clamav-rest
+  IMAGE: clamav
+  GH_REPO: gsa-tts/fac
+
+jobs:
+  build-clamav:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+    steps:
+      - name: Get Date
+        shell: bash
+        id: date
+        run: |
+          echo "date=$(date +%Y%m%d)" >> $GITHUB_OUTPUT
+
+      - name: Checkout Repository
+        uses: actions/checkout@v3
+
+      - name: Build Docker Image
+        run: docker build . -t ${{ env.DOCKER_NAME }}:${{ steps.date.outputs.date }}
+
+      - name: Tag Image
+        run: |
+          docker tag ${{ env.DOCKER_NAME }}:${{ steps.date.outputs.date }} ghcr.io/${{ env.GH_REPO }}/${{ env.IMAGE }}:${{ steps.date.outputs.date }}
+
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Push Image
+        run: docker push --all-tags ghcr.io/${{ env.GH_REPO }}/${{ env.IMAGE }}
+
+      - name: Upload Artifact
+        uses: ishworkh/docker-image-artifact-upload@v1
+        with:
+          image: "${{ env.DOCKER_NAME }}:${{ steps.date.outputs.date }}"
+          retention_days: "8"

README.md

@@ -128,6 +128,10 @@ Below is the complete list of available options that can be used to customize yo
 | `PCRE_MATCHLIMIT` | Maximum PCRE Match Calls - Default `100000` |
 | `PCRE_RECMATCHLIMIT` | Maximum Recursive Match Calls to PCRE - Default `2000` |
 | `SIGNATURE_CHECKS` | Check times per day for a new database signature. Must be between 1 and 50. - Default `2` |
+| `PROXY_SERVER` | Specify a proxy for freshclam to utilize, if applicable, set in environment variables - Optional |
+| `PROXY_PORT` | The port for the proxy server, if applicable, set in environment variables - Optional |
+| `PROXY_USERNAME` | The username for the proxy server, if applicable, set in environment variables - Optional |
+| `PROXY_PASSWORD` | The password for the proxy server, if applicable, set in environment variables - Optional |
 
 ## Networking
 

entrypoint.sh

@@ -15,6 +15,22 @@ sed -i 's/^#MaxPartitions .*$/MaxPartitions '"$MAX_PARTITIONS"'/g' /etc/clamav/c
 sed -i 's/^#MaxIconsPE .*$/MaxIconsPE '"$MAX_ICONSPE"'/g' /etc/clamav/clamd.conf
 sed -i 's/^#PCREMatchLimit.*$/PCREMatchLimit '"$PCRE_MATCHLIMIT"'/g' /etc/clamav/clamd.conf
 sed -i 's/^#PCRERecMatchLimit .*$/PCRERecMatchLimit '"$PCRE_RECMATCHLIMIT"'/g' /etc/clamav/clamd.conf
+
+if [ -n "$PROXY_SERVER" ]; then
+    sed -i 's~^#HTTPProxyServer .*~HTTPProxyServer '"$PROXY_SERVER"'~g' /etc/clamav/freshclam.conf
+
+    # It's not required, but if they also provided a port, then configure it
+    if [ -n "$PROXY_PORT" ]; then
+        sed -i 's/^#HTTPProxyPort .*$/HTTPProxyPort '"$PROXY_PORT"'/g' /etc/clamav/freshclam.conf
+    fi
+
+    # It's not required, but if they also provided a username, then configure both the username and password
+    if [ -n "$PROXY_USERNAME" ]; then
+        sed -i 's/^#HTTPProxyUsername .*$/HTTPProxyUsername '"$PROXY_USERNAME"'/g' /etc/clamav/freshclam.conf
+        sed -i 's~^#HTTPProxyPassword .*~HTTPProxyPassword '"$PROXY_PASSWORD"'~g' /etc/clamav/freshclam.conf
+    fi
+fi
+
 (
     freshclam --daemon --checks=$SIGNATURE_CHECKS &
     clamd &