Minimise bespoke scripting, use docker for docker operations

Dockerfile

@@ -2,11 +2,10 @@
 FROM python:2.7-alpine
 MAINTAINER https://github.com/muccg
 
-ARG DEVPI_VERSION
-ARG PIP_INDEX_URL=https://pypi.python.org/simple/
-ARG PIP_TRUSTED_HOST=127.0.0.1
+ARG ARG_DEVPI_VERSION
+ARG ARG_PIP_OPTS="--upgrade --no-cache-dir"
 
-ENV DEVPI_VERSION $DEVPI_VERSION
+ENV DEVPI_VERSION $ARG_DEVPI_VERSION
 ENV VIRTUAL_ENV /env
 
 # devpi user
@@ -17,12 +16,12 @@ RUN addgroup -S -g 1000 devpi \
 RUN apk add --no-cache bash
  
 # create a virtual env in $VIRTUAL_ENV, ensure it respects pip version
-RUN pip install $PIP_OPTS virtualenv \
+RUN pip install $ARG_PIP_OPTS virtualenv \
     && virtualenv $VIRTUAL_ENV \
-    && $VIRTUAL_ENV/bin/pip install --upgrade --no-cache-dir pip==$PYTHON_PIP_VERSION
+    && $VIRTUAL_ENV/bin/pip install $ARG_PIP_OPTS pip==$PYTHON_PIP_VERSION
 ENV PATH $VIRTUAL_ENV/bin:$PATH
 
-RUN NO_PROXY=$PIP_TRUSTED_HOST pip --trusted-host $PIP_TRUSTED_HOST install -i $PIP_INDEX_URL --upgrade \
+RUN pip install $ARG_PIP_OPTS \
     "devpi-client==2.6.3" \
     "devpi-server==$DEVPI_VERSION"
 

build.sh

@@ -5,31 +5,23 @@
 
 # break on error
 set -e
+set -x
+set -a
 
-REPO="muccg"
 DATE=`date +%Y.%m.%d`
+COMPOSE='docker-compose -f docker-compose-build.yml run docker19'
 
-DEVPI_VERSION="4.0.0"
+. ./vars.env
 
-# ALternative config to use local proxy
-#DOCKER_HOST=$(ip -4 addr show docker0 | grep -Po 'inet \K[\d.]+')
-#HTTP_PROXY="http://${DOCKER_HOST}:3128"
-#PIP_INDEX_URL="http://${DOCKER_HOST}:3141/root/pypi/+simple/"
-#PIP_TRUSTED_HOST=${DOCKER_HOST}
-#: ${DOCKER_BUILD_OPTIONS:="--no-cache --pull=true --build-arg PIP_TRUSTED_HOST=${PIP_TRUSTED_HOST} --build-arg PIP_INDEX_URL=${PIP_INDEX_URL} --build-arg DEVPI_VERSION=${DEVPI_VERSION}"}
+## warm up cache for CI
+docker pull ${IMAGE} || true
 
-: ${DOCKER_BUILD_OPTIONS:="--pull=true --build-arg DEVPI_VERSION=${DEVPI_VERSION}"}
+${COMPOSE} build --pull=true --build-arg ARG_DEVPI_VERSION=${DEVPI_VERSION} -t ${IMAGE}:latest /data
+${COMPOSE} inspect ${IMAGE}:latest
 
-image="${REPO}/devpi"
-echo "################################################################### ${image}"
-## warm up cache for CI
-docker pull ${image} || true
+${COMPOSE} tag -f ${IMAGE}:latest ${IMAGE}:latest-${DATE}
+${COMPOSE} tag -f ${IMAGE}:latest ${IMAGE}:${DEVPI_VERSION}
 
-for tag in "${image}:latest" "${image}:latest-${DATE}" "${image}:${DEVPI_VERSION}"; do
-    echo "############################################################# ${tag}"
-    set -x
-    docker build ${DOCKER_BUILD_OPTIONS} -t ${tag} .
-    docker inspect ${tag}
-    docker push ${tag}
-    set +x
-done
+${COMPOSE} push ${IMAGE}:latest
+${COMPOSE} push ${IMAGE}:latest-${DATE}
+${COMPOSE} push ${IMAGE}:${DEVPI_VERSION}

docker-compose-build.yml

@@ -0,0 +1,9 @@
+# docker socket shared with the host
+# docker creds shared with the host
+docker19:
+  image: docker:1.9.1
+  env_file: vars.env
+  volumes:
+    - /var/run/docker.sock:/var/run/docker.sock
+    - ~/.docker/config.json:/root/.docker/config.json
+    - ./:/data

vars.env

@@ -0,0 +1,2 @@
+DEVPI_VERSION=4.0.0
+IMAGE=muccg/devpi