Clean up our Docker scripts (#8214)

* rewrite build step

* rewrite deploy script

* fix exit status

* clean up comments

* fix typo

* correct comment

tools/docker/lib/common

@@ -31,130 +31,3 @@ export CERTBOT_PLUGINS=(
     "dns-linode"
     "dns-sakuracloud"
 )
-
-# Returns the translation from Docker to QEMU architecture
-# Usage: GetQemuArch [amd64|arm32v6|arm64v8]
-GetQemuArch() {
-    ARCH=$1
-
-    case "$ARCH" in
-        "amd64")
-            echo "x86_64"
-            ;;
-        "arm32v6")
-            echo "arm"
-            ;;
-        "arm64v8")
-            echo "aarch64"
-            ;;
-        "*")
-            echo "Not supported build architecture '$1'." >&2
-            exit -1
-    esac
-}
-
-# Downloads QEMU static binary file for architecture
-# Usage: DownloadQemuStatic [x86_64|arm|aarch64]
-DownloadQemuStatic() {
-    ARCH=$1
-
-    QEMU_ARCH=$(GetQemuArch "$ARCH")
-    if [ ! -f "qemu-${QEMU_ARCH}-static" ]; then
-        QEMU_DOWNLOAD_URL="https://github.com/multiarch/qemu-user-static/releases/download"
-        QEMU_LATEST_TAG=$(curl -s https://api.github.com/repos/multiarch/qemu-user-static/tags \
-            | grep 'name.*v[0-9]' \
-            | head -n 1 \
-            | cut -d '"' -f 4)
-        curl -SL "${QEMU_DOWNLOAD_URL}/${QEMU_LATEST_TAG}/x86_64_qemu-$QEMU_ARCH-static.tar.gz" \
-            | tar xzv
-    fi
-}
-
-# Executes the QEMU register script
-# Usage: RegisterQemuHandlers
-RegisterQemuHandlers() {
-    docker run --rm --privileged multiarch/qemu-user-static:register --reset
-}
-
-# Builds docker certbot core image for a specific architecture.
-# Usage: BuildDockerCoreImage [amd64|arm32v6|arm64v8]
-BuildDockerCoreImage() {
-    ARCH=$1
-
-    QEMU=$(GetQemuArch "$ARCH")
-    docker build \
-        --build-arg TARGET_ARCH="${ARCH}" \
-        --build-arg QEMU_ARCH="${QEMU}" \
-        -f "${DOCKERFILE_PATH}" \
-        -t "${DOCKER_REPO}:${ARCH}-${DOCKER_TAG}" \
-        .
-}
-
-# Builds docker certbot plugin image for a specific architecture and tag.
-# Usage: BuildDockerPluginImage [amd64|arm32v6|arm64v8]
-BuildDockerPluginImage() {
-    ARCH=$1
-
-    QEMU=$(GetQemuArch "$ARCH")
-    BASE_IMAGE="${DOCKER_HUB_ORG}/certbot:${TARGET_ARCH}-${DOCKER_TAG}"
-    docker build \
-        --build-arg BASE_IMAGE="${BASE_IMAGE}" \
-        --build-arg QEMU_ARCH="${QEMU}" \
-        -f "${DOCKERFILE_PATH}" \
-        -t "${DOCKER_REPO}:${ARCH}-${DOCKER_TAG}" \
-        .
-}
-
-# Pushes docker image for a specific architecture.
-# Usage: BuildDockerCoreImage [amd64|arm32v6|arm64v8]
-PushDockerImage() {
-    ARCH=$1
-
-    docker push "${DOCKER_REPO}:${ARCH}-${DOCKER_TAG}"
-}
-
-# Creates any docker images aliases for a given architecture.
-# If DOCKER_TAG tag is a version tag such as v0.35.0, the "latest" tag is also
-# updated. In the case of the default architecture, tags without the
-# architecture part are also created.
-# As an example, for amd64 (the default architecture) and the tag v0.35.0, the
-# following tags would be created:
-#  - certbot/certbot:v0.35.0
-#  - certbot/certbot:latest
-#  - certbot/certbot:amd64-latest
-# For the architecture arm32v6 and the tag v0.35.0, only the following tag
-# would be created:
-#  - certbot/certbot:arm32v6-latest
-# For other tags such as "nightly", aliases are only created for the default
-# architecture where the tag "nightly" would be used without an architecture
-# part.
-# Usage: TagDockerImageAliases [amd64|arm32v6|arm64v8]
-TagDockerImageAliases() {
-    ARCH=$1
-
-    if [[ "${DOCKER_TAG}" =~ ^v[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
-        docker tag "${DOCKER_REPO}:${ARCH}-${DOCKER_TAG}" "${DOCKER_REPO}:${ARCH}-latest"
-        if [ "${ARCH}" == "${DEFAULT_ARCH}" ]; then
-            docker tag "${DOCKER_REPO}:${ARCH}-${DOCKER_TAG}" "${DOCKER_REPO}:latest"
-        fi
-    fi
-    if [ "${ARCH}" == "${DEFAULT_ARCH}" ]; then
-        docker tag "${DOCKER_REPO}:${ARCH}-${DOCKER_TAG}" "${DOCKER_REPO}:${DOCKER_TAG}"
-    fi
-}
-
-# Pushes docker images aliases created by the TagDockerImageAliases function.
-# Usage: PushDockerImageAliases [amd64|arm32v6|arm64v8]
-PushDockerImageAliases() {
-    ARCH=$1
-
-    if [[ "${DOCKER_TAG}" =~ ^v[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
-        docker push "${DOCKER_REPO}:${ARCH}-latest"
-        if [ "${ARCH}" == "${DEFAULT_ARCH}" ]; then
-            docker push "${DOCKER_REPO}:latest"
-        fi
-    fi
-    if [ "${ARCH}" == "${DEFAULT_ARCH}" ]; then
-        docker push "${DOCKER_REPO}:${DOCKER_TAG}"
-    fi
-}