Build legacy swarm with any netplugin branch

During make build, user can specify:
* NETPLUGIN_BRANCH - the branch to compile instead of latest release
* NETPLUGIN_OWNER (if not contiv) - the username for the netplugin fork

When the branch is specified, only the full installer is built.

A lot of the environment / config for the build has moved to the
Makefile and enviornment variables so it's easy to find and set, and
they are largely prefixed with CONTIV_

Some decomposition of the build has happened (ansible and netplugin
split out into separate scripts and targets), getting us part way to
build.sh being only an assembling of assets gathered by other scripts
and dropped in artifact_staging directory.

Preparing the release tarball is done in a random temp directory that
is cleaned up automatically.

build.sh no longer takes a bunch of CLI arguments, instead relies on
enviornment variables, as this script is intended to be run by the
Makefile.

The legacy swarm mode prefers the full installer vs. the over the
internet installer.

Created a reusable installer unpacker that later can be used by other
install scripts.

Drive-by:
- update the netplugin versions to 1.1.5

Author: chrisplo

.gitignore

@@ -5,4 +5,5 @@ cluster/.vagrant
 cluster/export
 cluster/*.log
 release
+artifact_staging/
 

Makefile

@@ -1,13 +1,44 @@
+# backwards compatibility name for CONTIV_INSTALLER_VERSION
+export BUILD_VERSION ?= devbuild
+# sets the version for the installer output artifacts
+export CONTIV_INSTALLER_VERSION ?= $(BUILD_VERSION)
+# downloaded and built assets intended to go in installer by build.sh
+export CONTIV_ARTIFACT_STAGING := $(PWD)/artifact_staging
+# some assets are retrieved from GitHub, this is the default version to fetch
+export DEFAULT_DOWNLOAD_CONTIV_VERSION := 1.1.5
+export NETPLUGIN_OWNER ?= contiv
+# setting NETPLUGIN_BRANCH compiles that commit on demand,
+# setting CONTIV_NETPLUGIN_VERSION will download that released version
+ifeq ($(NETPLUGIN_BRANCH),)
+export CONTIV_NETPLUGIN_VERSION ?= $(DEFAULT_DOWNLOAD_CONTIV_VERSION)
+else
+export CONTIV_NETPLUGIN_VERSION := $(NETPLUGIN_OWNER)-$(NETPLUGIN_BRANCH)
+endif
+export CONTIV_NETPLUGIN_TARBALL_NAME := netplugin-$(CONTIV_NETPLUGIN_VERSION).tar.bz2
+export CONTIV_ANSIBLE_COMMIT ?= 4e67f54a8042debfc3d8b504046d0a1d4ea38c37
+export CONTIV_ANSIBLE_OWNER ?= contiv
+
 # this is the classic first makefile target, and it's also the default target
 # run when `make` is invoked with no specific target.
 all: build
 rel_ver = $(shell ./scripts/get_latest_release.sh)
 
+# accepts CONTIV_ANSIBLE_COMMIT and CONTIV_ANSIBLE_OWNER environment vars
+download-ansible-repo:
+	@scripts/download_ansible_repo.sh
+
+# set NETPLUGIN_OWNER (default contiv) and NETPLUGIN_BRANCH make variables
+# to compile locally
+# e.g. make NETPLUGIN_OWNER=contiv NETPLUGIN_BRANCH=master
+prepare-netplugin-tarball:
+	@scripts/prepare_netplugin_tarball.sh
+
+assemble-build:
+	@bash ./scripts/build.sh
+
 # build creates a release package for contiv.
 # It uses a pre-built image specified by BUILD_VERSION.
-build:
-	rm -rf release/
-	@bash ./scripts/build.sh
+build: download-ansible-repo prepare-netplugin-tarball assemble-build
 
 # ansible-image creates the docker image for ansible container
 # It uses the version specified by BUILD_VERSION or creates an image with the latest tag.

scripts/build.sh

@@ -1,5 +1,9 @@
 #!/bin/bash
 
+# Required environment variables:
+# * CONTIV_INSTALLER_VERSION - sets the tarball artifact filenames
+# * CONTIV_NETPLUGIN_VERSION - updates config files to locate contiv tarball
+
 set -euo pipefail
 
 # ensure this script wasn't called from the directory where this script
@@ -10,126 +14,73 @@ if [ "$script_dir" == "." ]; then
 	exit 1
 fi
 
-DEV_IMAGE_NAME="devbuild"
-VERSION=${BUILD_VERSION-$DEV_IMAGE_NAME}
-
-contiv_version=${CONTIV_VERSION:-"1.0.3"}
 pull_images=${CONTIV_CI_HOST:-"false"}
 aci_gw_version=${CONTIV_ACI_GW_VERSION:-"latest"}
-ansible_image_version=${CONTIV_ANSIBLE_IMAGE_VERSION:-$contiv_version}
-auth_proxy_version=${CONTIV_API_PROXY_VERSION:-$contiv_version}
+ansible_image_version=${CONTIV_ANSIBLE_IMAGE_VERSION:-$DEFAULT_DOWNLOAD_CONTIV_VERSION}
+auth_proxy_version=${CONTIV_API_PROXY_VERSION:-$DEFAULT_DOWNLOAD_CONTIV_VERSION}
 docker_version=${CONTIV_DOCKER_VERSION:-1.12.6}
 etcd_version=${CONTIV_ETCD_VERSION:-v2.3.8}
-contiv_ansible_commit=${CONTIV_ANSIBLE_COMMIT:-4e67f54a8042debfc3d8b504046d0a1d4ea38c37}
-contiv_ansible_owner=${CONTIV_ANSIBLE_OWNER:-contiv}
 
 # the installer currently pulls the v2plugin image directly from Docker Hub, but
 # this will change to being downloaded from the Docker Store in the future.
 # because of this, the default value for this variable will become the latest
 # version that is available in the Docker Store and should be considered
 # independent of $contiv_version above.
-v2plugin_version=${CONTIV_V2PLUGIN_VERSION:-"1.0.3"}
+v2plugin_version=${CONTIV_V2PLUGIN_VERSION:-"1.1.5"}
 
-function usage() {
-	echo "Usage:"
-	echo "./release.sh -a <ACI gateway image> -c <contiv version> -e <etcd version> -p <API proxy image version> "
-	exit 1
-}
+# where everything is assembled, always start with a clean dir and clean it up
+output_tmp_dir="$(mktemp -d)"
+output_dir="${output_tmp_dir}/contiv-${CONTIV_INSTALLER_VERSION}"
+mkdir -p ${output_dir}
+trap 'rm -rf ${output_tmp_dir}' EXIT
 
-function error_ret() {
-	echo ""
-	echo $1
-	exit 1
-}
-
-while getopts ":a:p:c:e:v:" opt; do
-	case $opt in
-		a)
-			aci_gw_version=$OPTARG
-			;;
-		c)
-			contiv_version=$OPTARG
-			;;
-		e)
-			etcd_version=$OPTARG
-			;;
-		p)
-			auth_proxy_version=$OPTARG
-			;;
-		v)
-			v2plugin_version=$OPTARG
-			;;
-		:)
-			echo "An argument required for $OPTARG was not passed"
-			usage
-			;;
-		?)
-			usage
-			;;
-	esac
-done
-
-release_dir="release"
-output_dir="$release_dir/contiv-$VERSION/"
-output_file="$release_dir/contiv-$VERSION.tgz"
-tmp_output_file="contiv-$VERSION.tgz"
-full_output_file="$release_dir/contiv-full-$VERSION.tgz"
-tmp_full_output_file="contiv-full-$VERSION.tgz"
-
-# Clean older dist folders and release binaries
-rm -rf $output_dir
-rm -rf $output_file
+release_dir=release
+mkdir -p $release_dir
+output_file="${release_dir}/contiv-${CONTIV_INSTALLER_VERSION}.tgz"
+full_output_file="$release_dir/contiv-full-${CONTIV_INSTALLER_VERSION}.tgz"
 
 # Release files 
 # k8s - install.sh to take the args and construct contiv.yaml as required and to launch kubectl
 # swarm - install.sh launches the container to do the actual installation
 # Top level install.sh which will either take k8s/swarm install params and do the required.
-mkdir -p $output_dir
-cp -rf install $output_dir
-cp README.md $output_dir
+cp -rf install README.md $output_dir
 cp -rf scripts/generate-certificate.sh $output_dir/install
 
 # Get the ansible support files
 chmod +x $output_dir/install/genInventoryFile.py
 chmod +x $output_dir/install/generate-certificate.sh
 
-# This is maybe optional - but assume we need it for
-curl -sSL https://github.com/contiv/netplugin/releases/download/$contiv_version/netplugin-$contiv_version.tar.bz2 -o $output_dir/netplugin-$contiv_version.tar.bz2
-pushd $output_dir
-tar oxf netplugin-$contiv_version.tar.bz2 netctl
-rm -f netplugin-$contiv_version.tar.bz2
-popd
-# add ansible repo contents where final tarball will include
-mkdir $output_dir/ansible
-curl -sL https://api.github.com/repos/${contiv_ansible_owner}/ansible/tarball/$contiv_ansible_commit \
-    | tar --strip-components 1 -C $output_dir/ansible -z -x
+cp -a ${CONTIV_ARTIFACT_STAGING}/ansible ${output_dir}/
 
 # Replace versions
 files=$(find $output_dir -type f -name "*.yaml" -or -name "*.sh" -or -name "*.json")
 sed -i.bak "s/__ACI_GW_VERSION__/$aci_gw_version/g" $files
 sed -i.bak "s/__API_PROXY_VERSION__/$auth_proxy_version/g" $files
 sed -i.bak "s/__CONTIV_INSTALL_VERSION__/$ansible_image_version/g" $files
-sed -i.bak "s/__CONTIV_VERSION__/$contiv_version/g" $files
+sed -i.bak "s/__CONTIV_VERSION__/$CONTIV_NETPLUGIN_VERSION/g" $files
 sed -i.bak "s/__DOCKER_VERSION__/$docker_version/g" $files
 sed -i.bak "s/__ETCD_VERSION__/$etcd_version/g" $files
 sed -i.bak "s/__CONTIV_V2PLUGIN_VERSION__/$v2plugin_version/g" $files
 
 # Make all shell script files executable
 chmod +x $(find $output_dir -type f -name "*.sh")
 
-# Cleanup the backup files
-rm -rf $output_dir/scripts
-rm -rf $(find $output_dir -type f -name "*.bak")
-
 # Clean up the Dockerfile, it is not part of the release bits.
 rm -f $output_dir/install/ansible/Dockerfile
 
 # Create the binary cache folder
 binary_cache=$output_dir/contiv_cache
 mkdir -p $binary_cache
 
-# Create the minimal tar bundle
-tar czf $tmp_output_file -C $release_dir contiv-$VERSION
+# only build installer that pulls artifacts over internet if not building
+# a specific commit of netplugin
+if [ -z "${NETPLUGIN_BRANCH:-}" ]; then
+    # Create the minimal tar bundle
+    tar czf $output_file -C $output_tmp_dir contiv-${CONTIV_INSTALLER_VERSION}
+    echo -n "Contiv Installer version '$CONTIV_INSTALLER_VERSION' with "
+    echo    "netplugin version '$CONTIV_NETPLUGIN_VERSION' is available "
+    echo    "at '$output_file'"
+fi
 
 # Save the auth proxy & aci-gw images for packaging the full docker images with contiv install binaries
 if [[ "$(docker images -q contiv/auth_proxy:$auth_proxy_version 2>/dev/null)" == "" || "$pull_images" == "true" ]]; then
@@ -147,15 +98,27 @@ curl --fail -sL -o $binary_cache/openvswitch-2.5.0-2.el7.x86_64.rpm http://cbs.c
 curl --fail -sL -o $binary_cache/ovs-common.deb http://mirrors.kernel.org/ubuntu/pool/main/o/openvswitch/openvswitch-common_2.5.2-0ubuntu0.16.04.3_amd64.deb
 curl --fail -sL -o $binary_cache/ovs-switch.deb http://mirrors.kernel.org/ubuntu/pool/main/o/openvswitch/openvswitch-switch_2.5.2-0ubuntu0.16.04.3_amd64.deb
 
+# Copy the netplugin release into the binary cache for "full" installer
+# Netplugin releases built locally based on a branch are named by their SHA,
+# but there is a symlink to point to the SHA named tarball by it's branch name
+plugin_tball=${CONTIV_ARTIFACT_STAGING}/$CONTIV_NETPLUGIN_TARBALL_NAME
+if [[ -L "${plugin_tball}" ]]; then
+    # copy the link (so other processes can find the tarball) and the tarball
+    target_plugin_tball=$(readlink ${plugin_tball})
+    cp -a ${plugin_tball} ${binary_cache}/
+    plugin_tball=${CONTIV_ARTIFACT_STAGING}/${target_plugin_tball}
+fi
+cp ${plugin_tball} ${binary_cache}/
+
 env_file=$output_dir/install/ansible/env.json
 sed -i.bak "s#.*auth_proxy_local_install.*#  \"auth_proxy_local_install\": True,#g" $env_file
 sed -i.bak "s#.*contiv_network_local_install.*#  \"contiv_network_local_install\": True,#g" $env_file
 
 # Create the full tar bundle
-tar czf $tmp_full_output_file -C $release_dir contiv-$VERSION
-
-mv $tmp_output_file $output_file
-mv $tmp_full_output_file $full_output_file
-rm -rf $output_dir
-
-echo "Success: Contiv Installer version $VERSION is available at $output_file"
+tar czf $full_output_file -C $output_tmp_dir contiv-${CONTIV_INSTALLER_VERSION}
+echo -n "Contiv Installer version '$CONTIV_INSTALLER_VERSION' with "
+echo    "netplugin version '$CONTIV_NETPLUGIN_VERSION' is available "
+echo    "at '$full_output_file', it includes all contiv assets "
+echo    "required for installation"
+echo
+echo -e "\nSuccess"

scripts/download_ansible_repo.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+set -euo pipefail
+
+ANSIBLE_REPO_DIR=${CONTIV_ARTIFACT_STAGING}/ansible
+
+rm -rf $ANSIBLE_REPO_DIR
+
+mkdir -p $ANSIBLE_REPO_DIR $CONTIV_ARTIFACT_STAGING
+
+echo downloading ${CONTIV_ANSIBLE_OWNER}/ansible commit: $CONTIV_ANSIBLE_COMMIT
+curl --fail -sL https://api.github.com/repos/${CONTIV_ANSIBLE_OWNER}/ansible/tarball/$CONTIV_ANSIBLE_COMMIT \
+    | tar --strip-components 1 -C $ANSIBLE_REPO_DIR -z -x

scripts/legacy_swarm_test.sh

@@ -24,16 +24,12 @@ if [ "$ssh_key" == "" ]; then
 	ssh_key=$(vagrant ssh-config legacy-swarm-master | grep IdentityFile | awk '{print $2}' | xargs)
 fi
 popd
+
+./scripts/unpack-installer.sh
+
 # Extract and launch the installer
-mkdir -p release
-cd release
-if [ ! -f "${install_version}.tgz" ]; then
-	# For release builds, get the build from github releases
-	curl -L -O https://github.com/contiv/install/releases/download/${BUILD_VERSION}/${install_version}.tgz
-fi
 
-tar oxf $install_version.tgz
-cd $install_version
+cd release/$install_version
 ./install/ansible/install_swarm.sh -f ../../cluster/.cfg_legacy-swarm.yaml -e $ssh_key -u $user -i
 
 # Wait for CONTIV to start for up to 10 minutes
@@ -46,7 +42,7 @@ for i in {0..20}; do
 		cat <<EOF
   NOTE: Because the Contiv Admin Console is using a self-signed certificate for this demo,
   you will see a security warning when the page loads.  You can safely dismiss it.
-  
+
   You can access the Contiv master node with:
     cd cluster && vagrant ssh legacy-swarm-master
 EOF

scripts/swarm_mode_test.sh

@@ -16,24 +16,31 @@ else
 fi
 user=${CONTIV_SSH_USER:-"$def_user"}
 
-# If BUILD_VERSION is not defined, we use a local dev build, that must have been created with make release
-install_version="contiv-${BUILD_VERSION:-devbuild}"
 pushd cluster
 ssh_key=${CONTIV_SSH_KEY:-"$def_key"}
 if [ "$ssh_key" == "" ]; then
 	ssh_key=$(vagrant ssh-config swarm-mode-master | grep IdentityFile | awk '{print $2}' | xargs)
 fi
 popd
+
 # Extract and launch the installer
 mkdir -p release
 cd release
-if [ ! -f "${install_version}.tgz" ]; then
-	# For release builds, get the build from github releases
-	curl -L -O https://github.com/contiv/install/releases/download/${BUILD_VERSION}/${install_version}.tgz
+# If BUILD_VERSION is not defined, we use a local dev build, that must have been created with make release
+release_name="contiv-${BUILD_VERSION:-devbuild}"
+release_tarball="${release_name}.tgz"
+release_local_tarball="contiv-full-${BUILD_VERSION}.tgz"
+if [ -f "${release_local_tarball}" ]; then
+    tar oxf "${release_local_tarball}"
+else
+    if [ ! -f "${release_tarball}" ]; then
+        # For release builds, get the build from github releases
+        curl -L -O https://github.com/contiv/install/releases/download/${BUILD_VERSION}/${release_name}.tgz
+    fi
+    tar oxf "${release_name}.tgz"
 fi
 
-tar oxf $install_version.tgz
-cd $install_version
+cd $release_name
 ./install/ansible/install_swarm.sh -f ../../cluster/.cfg_swarm-mode.yaml -e $ssh_key -u $user -p
 
 # Wait for CONTIV to start for up to 10 minutes