diff --git a/.drone.yml b/.drone.yml
new file mode 100644
index 0000000..87b2180
--- /dev/null
+++ b/.drone.yml
@@ -0,0 +1,37 @@
+---
+kind: pipeline
+type: docker
+name: arm32 images
+platform:
+  os: linux
+  arch: arm
+steps:
+- name: squid image for dockerhub
+  image: plugins/docker
+  settings:
+    repo: docker.io/b4tman/squid
+    auto_tag: true
+    auto_tag_suffix: armhf
+    pull_image: true
+    registry: docker.io
+    username: b4tman
+    password:
+      from_secret: docker_password
+    config:
+      from_secret: docker_config
+- name: squid-armhf image for github packages
+  image: plugins/docker
+  settings:
+    repo: ghcr.io/b4tman/squid-armhf
+    auto_tag: true
+    pull_image: true
+    registry: ghcr.io
+    username: b4tman
+    password:
+      from_secret: github_password
+    config:
+      from_secret: docker_config
+trigger:
+  ref:
+  - refs/tags/**
+  - refs/heads/master
diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 0000000..5010239
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,14 @@
+version: 2
+updates:
+  - package-ecosystem: docker
+    directory: "/"
+    schedule:
+      interval: monthly
+      time: "02:00"
+    open-pull-requests-limit: 10
+
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: monthly
+      time: "03:00"
diff --git a/.github/workflows/dockerimage.yml b/.github/workflows/dockerimage.yml
index 719d057..8e8b090 100644
--- a/.github/workflows/dockerimage.yml
+++ b/.github/workflows/dockerimage.yml
@@ -5,79 +5,213 @@ on:
     # Publish `master` as Docker `latest` image.
     branches:
       - master
-    
+
     # Publish `v1.2.3` tags as releases.
     tags:
       - v*
-  
-  # Run tests for any PRs.
+
+  # Run tests for PRs to `master` branch.
   pull_request:
-  
+    branches:
+      - "master"
+
 jobs:
-  test: 
-    runs-on: ubuntu-18.04
+  test:
+    runs-on: ubuntu-20.04
     steps:
-    - uses: actions/checkout@v2
-    
-    - name: Build squid image
-      run: docker build . --file Dockerfile --tag b4tman/squid
-    
-    - name: Test image
-      run: docker-compose -f docker-compose.test.yml up sut
-    
-    - name: Build 'ssl-bump' image
-      run: docker build ssl-bump --tag b4tman/squid:ssl-bump
-  
+      - 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: Login to DockerHub
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v1
+        with:
+          username: b4tman
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Cache Docker layers
+        uses: actions/cache@v2
+        with:
+          path: /tmp/.buildx-cache
+          key: ${{ runner.os }}-buildx-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.os }}-buildx-
+
+      - name: Build squid image
+        uses: docker/build-push-action@v2
+        with:
+          context: .
+          push: false
+          tags: b4tman/squid
+          cache-from: type=local,src=/tmp/.buildx-cache
+          cache-to: type=local,dest=/tmp/.buildx-cache-new
+          outputs: type=image,name=b4tman/squid,push=false
+
+      # Temp fix
+      # https://github.com/docker/build-push-action/issues/252
+      # https://github.com/moby/buildkit/issues/1896
+      - name: Move cache
+        run: |
+          rm -rf /tmp/.buildx-cache
+          mv /tmp/.buildx-cache-new /tmp/.buildx-cache
+
+      - name: Test image
+        run: docker-compose -f docker-compose.test.yml up sut
+
+      - name: Build 'ssl-bump' image
+        uses: docker/build-push-action@v2
+        with:
+          context: ssl-bump
+          push: false
+          file: ssl-bump/Dockerfile
+          tags: b4tman/squid:ssl-bump
+          cache-from: type=local,src=/tmp/.buildx-cache
+          cache-to: type=local,dest=/tmp/.buildx-cache-new
+
+      # Temp fix
+      # https://github.com/docker/build-push-action/issues/252
+      # https://github.com/moby/buildkit/issues/1896
+      - name: Move cache
+        run: |
+          rm -rf /tmp/.buildx-cache
+          mv /tmp/.buildx-cache-new /tmp/.buildx-cache
+
   push:
     needs: test
-    runs-on: ubuntu-18.04
-    if: github.event_name == 'push'
+    runs-on: ubuntu-20.04
+    if: github.event_name != 'pull_request'
     steps:
-    - uses: actions/checkout@v2
-    
-    - name: Build squid image
-      run: docker build . --file Dockerfile --tag b4tman/squid
-    
-    - name: Build 'ssl-bump' image
-      run: docker build ssl-bump --tag b4tman/squid:ssl-bump
-    
-    - name: Log into registry
-      run: echo "${{ secrets.GITHUB_PKGS_TOKEN }}" | docker login docker.pkg.github.com -u ${{ github.actor }} --password-stdin
-    
-    - name: Push squid image
-      run: |
-        IMAGE_ID=docker.pkg.github.com/${{ github.repository }}/squid
-      
-        # Strip git ref prefix from version
-        VERSION=$(echo "${{ github.ref }}" | sed -e 's,.*/\(.*\),\1,')
-      
-        # Strip "v" prefix from tag name
-        [[ "${{ github.ref }}" == "refs/tags/"* ]] && VERSION=$(echo $VERSION | sed -e 's/^v//')
-      
-        # Use Docker `latest` tag convention
-        [ "$VERSION" == "master" ] && VERSION=latest
-      
-        echo IMAGE_ID=$IMAGE_ID
-        echo VERSION=$VERSION
-      
-        docker tag b4tman/squid $IMAGE_ID:$VERSION
-        docker push $IMAGE_ID:$VERSION
-    
-    - name: Push 'ssl-bump' image
-      run: |
-        IMAGE_ID=docker.pkg.github.com/${{ github.repository }}/ssl-bump
-      
-        # Strip git ref prefix from version
-        VERSION=$(echo "${{ github.ref }}" | sed -e 's,.*/\(.*\),\1,')
-      
-        # Strip "v" prefix from tag name
-        [[ "${{ github.ref }}" == "refs/tags/"* ]] && VERSION=$(echo $VERSION | sed -e 's/^v//')
-      
-        # Use Docker `latest` tag convention
-        [ "$VERSION" == "master" ] && VERSION=latest
-      
-        echo IMAGE_ID=$IMAGE_ID
-        echo VERSION=$VERSION
-      
-        docker tag b4tman/squid:ssl-bump $IMAGE_ID:$VERSION
-        docker push $IMAGE_ID:$VERSION
+      - uses: actions/checkout@v2
+
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v3
+        with:
+          images: |
+            b4tman/squid
+            ghcr.io/b4tman/squid
+          flavor: |
+            latest=${{ github.ref == 'refs/heads/master' }}
+          tags: |
+            type=ref,event=branch
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+
+      - name: Docker meta (ssl-bump)
+        id: meta_ssl_bump
+        uses: docker/metadata-action@v3
+        with:
+          images: |
+            b4tman/squid
+            ghcr.io/b4tman/squid
+          flavor: |
+            latest=false
+            suffix=-ssl-bump
+          tags: |
+            type=ref,event=branch
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+
+      - name: Docker meta (ssl-bump ghcr)
+        id: meta_ssl_bump_ghcr
+        uses: docker/metadata-action@v3
+        with:
+          images: |
+            ghcr.io/b4tman/squid-ssl-bump
+          flavor: |
+            latest=${{ github.ref == 'refs/heads/master' }}
+          tags: |
+            type=ref,event=branch
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+
+      - name: Cache Docker layers
+        uses: actions/cache@v2
+        with:
+          path: /tmp/.buildx-cache
+          key: ${{ runner.os }}-buildx-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.os }}-buildx-
+
+      - name: Login to DockerHub
+        uses: docker/login-action@v1
+        with:
+          username: b4tman
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Login to GHCR
+        uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.CR_PAT }}
+
+      - name: Build squid image
+        uses: docker/build-push-action@v2
+        with:
+          context: .
+          push: true
+          platforms: linux/amd64,linux/arm/v7
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=local,src=/tmp/.buildx-cache
+          cache-to: type=local,dest=/tmp/.buildx-cache-new
+
+      # Temp fix
+      # https://github.com/docker/build-push-action/issues/252
+      # https://github.com/moby/buildkit/issues/1896
+      - name: Move cache
+        run: |
+          rm -rf /tmp/.buildx-cache
+          mv /tmp/.buildx-cache-new /tmp/.buildx-cache
+
+      - name: Build 'ssl-bump' image
+        uses: docker/build-push-action@v2
+        with:
+          context: ssl-bump
+          push: true
+          file: ssl-bump/Dockerfile
+          platforms: linux/amd64,linux/arm/v7
+          tags: ${{ steps.meta_ssl_bump.outputs.tags }}
+          labels: ${{ steps.meta_ssl_bump.outputs.labels }}
+          cache-from: type=local,src=/tmp/.buildx-cache
+          cache-to: type=local,dest=/tmp/.buildx-cache-new
+
+      # Temp fix
+      # https://github.com/docker/build-push-action/issues/252
+      # https://github.com/moby/buildkit/issues/1896
+      - name: Move cache
+        run: |
+          rm -rf /tmp/.buildx-cache
+          mv /tmp/.buildx-cache-new /tmp/.buildx-cache
+
+      - name: Build 'ssl-bump' image for ghcr
+        uses: docker/build-push-action@v2
+        with:
+          context: ssl-bump
+          push: true
+          file: ssl-bump/Dockerfile
+          platforms: linux/amd64,linux/arm/v7
+          tags: ${{ steps.meta_ssl_bump_ghcr.outputs.tags }}
+          labels: ${{ steps.meta_ssl_bump_ghcr.outputs.labels }}
+          cache-from: type=local,src=/tmp/.buildx-cache
+          cache-to: type=local,dest=/tmp/.buildx-cache-new
+
+      # Temp fix
+      # https://github.com/docker/build-push-action/issues/252
+      # https://github.com/moby/buildkit/issues/1896
+      - name: Move cache
+        run: |
+          rm -rf /tmp/.buildx-cache
+          mv /tmp/.buildx-cache-new /tmp/.buildx-cache
diff --git a/Dockerfile b/Dockerfile
index 7ec6079..2152807 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,11 @@
-FROM alpine:3.11.3 as build
+FROM alpine:3.14.0 as build
 
 ENV SQUID_VER 5.0.1
-ENV SQUID_SIG_KEY B06884EDB779C89B044E64E3CD6DBF8EF3B17D3E
+
+# fix conflict with libretls and libressl
+RUN set -x && \
+	apk add --no-cache libretls && \
+	apk upgrade --no-cache libretls
 
 RUN set -x && \
 	apk add --no-cache  \
@@ -26,15 +30,13 @@ RUN set -x && \
 	cd /tmp/build && \
     curl -SsL http://www.squid-cache.org/Versions/v${SQUID_VER%%.*}/squid-${SQUID_VER}.tar.gz -o squid-${SQUID_VER}.tar.gz && \
 	curl -SsL http://www.squid-cache.org/Versions/v${SQUID_VER%%.*}/squid-${SQUID_VER}.tar.gz.asc -o squid-${SQUID_VER}.tar.gz.asc
-	
+
+COPY squid-keys.asc /tmp
+
 RUN set -x && \
 	cd /tmp/build && \
 	export GNUPGHOME="$(mktemp -d)" && \
-	( \
-	 gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys ${SQUID_SIG_KEY} || \
-     gpg --keyserver hkp://ipv4.pool.sks-keyservers.net   --recv-keys ${SQUID_SIG_KEY} ||  \
-     gpg --keyserver hkp://pgp.mit.edu:80                 --recv-keys ${SQUID_SIG_KEY} \
-	) && \
+	gpg --import /tmp/squid-keys.asc && \
 	gpg --batch --verify squid-${SQUID_VER}.tar.gz.asc squid-${SQUID_VER}.tar.gz && \
 	rm -rf "$GNUPGHOME"
 	
@@ -63,7 +65,7 @@ RUN set -x && \
 		--enable-epoll \
 		--enable-external-acl-helpers="file_userip,unix_group,wbinfo_group" \
 		--enable-auth-ntlm="fake" \
-		--enable-auth-negotiate="wrapper" \
+		--enable-auth-negotiate="kerberos,wrapper" \
 		--enable-silent-rules \
 		--disable-mit \
 		--enable-heimdal \
@@ -93,15 +95,18 @@ RUN set -x && \
 		--with-openssl \
 		--with-pidfile=/var/run/squid/squid.pid
 
+
 RUN set -x && \
 	cd /tmp/build && \
-	make -j $(grep -cs ^processor /proc/cpuinfo) && \
-	make install
-
-RUN sed -i '1s;^;include /etc/squid/conf.d/*.conf\n;' /etc/squid/squid.conf
-RUN echo 'include /etc/squid/conf.d.tail/*.conf' >> /etc/squid/squid.conf
+	nproc=$(n=$(nproc) ; max_n=6 ; [ $n -le $max_n ] && echo $n || echo $max_n) && \
+	make -j $nproc && \
+	make install && \
+	cd tools/squidclient && make && make install-strip
 
-FROM alpine:3.11.3
+RUN sed -i '1s;^;include /etc/squid/conf.d/*.conf\n;' /etc/squid/squid.conf
+RUN echo 'include /etc/squid/conf.d.tail/*.conf' >> /etc/squid/squid.conf
+
+FROM alpine:3.14.0
 	
 ENV SQUID_CONFIG_FILE /etc/squid/squid.conf
 ENV TZ Europe/Moscow
@@ -110,18 +115,25 @@ RUN set -x && \
 	deluser squid 2>/dev/null; delgroup squid 2>/dev/null; \
 	addgroup -S squid -g 3128 && adduser -S -u 3128 -G squid -g squid -H -D -s /bin/false -h /var/cache/squid squid
 
+# fix conflict with libretls and libressl
+RUN set -x && \
+	apk add --no-cache libretls && \
+	apk upgrade --no-cache libretls
+
 RUN apk add --no-cache \
 		libstdc++ \
 		heimdal-libs \
 		libcap \
-		libressl3.0-libcrypto \
-		libressl3.0-libssl \
+		libressl3.3-libcrypto \
+		libressl3.3-libssl \
 		libltdl	
 
 COPY --from=build /etc/squid/ /etc/squid/
 COPY --from=build /usr/lib/squid/ /usr/lib/squid/
 COPY --from=build /usr/share/squid/ /usr/share/squid/
 COPY --from=build /usr/sbin/squid /usr/sbin/squid
+COPY --from=build /usr/bin/squidclient /usr/bin/squidclient
+
 		
 RUN install -d -o squid -g squid \
 		/var/cache/squid \
diff --git a/README.md b/README.md
index 7ae3467..475cf94 100644
--- a/README.md
+++ b/README.md
@@ -1,13 +1,19 @@
-[![](https://images.microbadger.com/badges/image/b4tman/squid.svg)](https://microbadger.com/images/b4tman/squid "Get your own image badge on microbadger.com")
-[![Dependabot Status](https://api.dependabot.com/badges/status?host=github&repo=b4tman/docker-squid)](https://dependabot.com)
-![Docker Build Status](https://img.shields.io/docker/build/b4tman/squid)
+[![Drone Build Status](https://cloud.drone.io/api/badges/b4tman/docker-squid/status.svg?ref=refs/heads/master)](https://cloud.drone.io/b4tman/docker-squid)
+![Docker Build Status](https://img.shields.io/docker/cloud/build/b4tman/squid)
 ![Docker Image CI Status](https://github.com/b4tman/docker-squid/workflows/Docker%20Image%20CI/badge.svg)
 
 # docker-squid
 
 Docker Squid container based on Alpine Linux.
 
-Automated builds of the image are available on [Dockerhub](https://hub.docker.com/r/b4tman/squid).
+Automated builds of the image are available on:
+
+- DockerHub:
+  - [b4tman/squid](https://hub.docker.com/r/b4tman/squid)
+- Github:
+  - [ghcr.io/b4tman/squid](https://github.com/users/b4tman/packages/container/package/squid)
+  - [ghcr.io/b4tman/squid-armhf](https://github.com/users/b4tman/packages/container/package/squid-armhf)
+  - [ghcr.io/b4tman/squid-ssl-bump](https://github.com/users/b4tman/packages/container/package/squid-ssl-bump)
 
 # Quick Start
 
@@ -30,7 +36,6 @@ docker-compose up
 
 - **SQUID_CONFIG_FILE**: Specify the configuration file for squid. Defaults to `/etc/squid/squid.conf`.
 
-
 ## Example:
 
 ```bash
@@ -40,4 +45,4 @@ docker run -p 3128:3128 \
 	b4tman/squid
 ```
 
-This will start a squid container with your config file `/srv/docker/squid/squid.conf`. 
+This will start a squid container with your config file `/srv/docker/squid/squid.conf`.
diff --git a/docker-compose.test.yml b/docker-compose.test.yml
index 7b48686..e0f80f8 100644
--- a/docker-compose.test.yml
+++ b/docker-compose.test.yml
@@ -1,11 +1,20 @@
-version: '2'
+version: '2.3'
 services:
   proxy:
-    build: .
+    image: squidproxy
+    build:
+      context: .
+      dockerfile: Dockerfile
+    healthcheck:
+      test: ["CMD", "sh", "-exc", "squidclient -T 3 mgr:info 2> /dev/null | grep -qF '200 OK'"]
+      interval: 5s
+      timeout: 3s
+      retries: 5
+      start_period: 1s
   sut:
-    image: alpine:3.10.1
+    image: squidproxy
     links: 
       - proxy
     depends_on:
       - proxy
-    command: sh -exc "apk add --update curl && sleep 5 && exec curl --proxy http://proxy:3128 -I http://google.com/"
+    command: sh -exc "sleep 10 && squidclient -h proxy -T 3 'https://postman-echo.com/get?squidtest=ok' 2> /dev/null | grep -qF '200 OK'"
diff --git a/squid-keys.asc b/squid-keys.asc
new file mode 100644
index 0000000..2f74573
Binary files /dev/null and b/squid-keys.asc differ