Move origin-gce roles and playbooks into openshift-ansible

This moves all core functionality into the openshift-ansible repo, adds
the necessary equivalent entrypoint to the openshift-ansible installer
image, and ensures the dynamic inventory mechanisms in openshift-ansible
continue to work.

Notable changes from origin-gce:

* playbook extensions changed to .yml
* dynamic inventory subdirectory created to prevent accidental use
* use the custom entrypoint entrypoint-gcp for this image
* move tasks into openshift_gcp role

3 files changed, 58 insertions, 3 deletions

diff --git a/images/installer/Dockerfile b/images/installer/Dockerfile
index 782ff6b6e..22a0d06a0 100644
--- a/images/installer/Dockerfile
+++ b/images/installer/Dockerfile
@@ -8,12 +8,14 @@ USER root
 COPY images/installer/origin-extra-root /
 
 # install ansible and deps
-RUN INSTALL_PKGS="python-lxml pyOpenSSL python2-cryptography openssl java-1.8.0-openjdk-headless python2-passlib httpd-tools openssh-clients origin-clients" \
+RUN INSTALL_PKGS="python-lxml python-dns pyOpenSSL python2-cryptography openssl java-1.8.0-openjdk-headless python2-passlib httpd-tools openssh-clients origin-clients" \
  && yum install -y --setopt=tsflags=nodocs $INSTALL_PKGS \
- && EPEL_PKGS="ansible python2-boto python2-boto3 python2-libcloud google-cloud-sdk-183.0.0 which" \
+ && EPEL_PKGS="ansible python2-boto python2-boto3 google-cloud-sdk-183.0.0 which" \
  && yum install -y epel-release \
  && yum install -y --setopt=tsflags=nodocs $EPEL_PKGS \
- && rpm -V $INSTALL_PKGS $EPEL_PKGS \
+ && EPEL_TESTING_PKGS="python2-libcloud" \
+ && yum install -y --enablerepo=epel-testing --setopt=tsflags=nodocs $EPEL_TESTING_PKGS \
+ && rpm -V $INSTALL_PKGS $EPEL_PKGS $EPEL_TESTING_PKGS \
  && yum clean all
 
 LABEL name="openshift/origin-ansible" \
diff --git a/images/installer/root/usr/local/bin/entrypoint-gcp b/images/installer/root/usr/local/bin/entrypoint-gcp
new file mode 100755
index 000000000..d0ffd9904
--- /dev/null
+++ b/images/installer/root/usr/local/bin/entrypoint-gcp
@@ -0,0 +1,51 @@
+#!/bin/bash
+#
+# This file sets up the user to run in the GCP environment.
+# It provides dynamic inventory that works well when run in
+# a container environment by setting up a default inventory.
+# It assumes the user has provided a GCP service account token
+# and ssh-privatekey file at "$(pwd)/inventory/dynamic/injected"
+# and automatically links any YAML files found into the group
+# vars directory, which allows the playbook to more easily be
+# run in containerized contexts.
+
+WORK=$(pwd)
+FILES="${WORK}/inventory/dynamic/injected"
+
+# Patch /etc/passwd file with the current user info.
+# The current user's entry must be correctly defined in this file in order for
+# the `ssh` command to work within the created container.
+
+if ! whoami &>/dev/null; then
+  echo "${USER:-default}:x:$(id -u):$(id -g):Default User:$HOME:/sbin/nologin" >> /etc/passwd
+fi
+
+# Provide a "files_dir" variable that points to inventory/dynamic/injected
+echo "files_dir: \"${FILES}\"" > "${WORK}/inventory/dynamic/gcp/group_vars/all/00_default_files_dir.yml"
+# Add any injected variable files into the group vars directory
+find "${FILES}" -name '*.yml' -or -name '*.yaml' -or -name vars | xargs -L1 -I {} ln -fs {} "${WORK}/inventory/dynamic/gcp/group_vars/all"
+# Avoid sudo when running locally - nothing in the image requires it.
+mkdir -p "${WORK}/inventory/dynamic/gcp/host_vars/localhost"
+echo "ansible_become: no" > "${WORK}/inventory/dynamic/gcp/host_vars/localhost/00_skip_root.yaml"
+
+if [[ -z "${ANSIBLE_CONFIG-}" ]]; then
+  export ANSIBLE_CONFIG="${WORK}/inventory/dynamic/gcp/ansible.cfg"
+fi
+
+# SSH requires the file to be owned by the current user, but Docker copies
+# files in as root. Put the file into the ssh dir with the right permissions
+if [[ -f "${FILES}/ssh-privatekey" ]]; then
+  keyfile="${HOME}/.ssh/google_compute_engine"
+  mkdir "${HOME}/.ssh"
+  rm -f "${keyfile}"
+  cat "${FILES}/ssh-privatekey" > "${keyfile}"
+  chmod 0600 "${keyfile}"
+  ssh-keygen -y -f "${keyfile}" >  "${keyfile}.pub"
+fi
+if [[ -f "${FILES}/gce.json" ]]; then
+  gcloud auth activate-service-account --key-file="${FILES}/gce.json"
+else
+  echo "No service account file found at ${FILES}/gce.json, bypassing login"
+fi
+
+exec "$@"
\ No newline at end of file
diff --git a/images/installer/root/usr/local/bin/user_setup b/images/installer/root/usr/local/bin/user_setup
index b76e60a4d..dba0af3e4 100755
--- a/images/installer/root/usr/local/bin/user_setup
+++ b/images/installer/root/usr/local/bin/user_setup
@@ -12,6 +12,8 @@ chmod g+rw /etc/passwd
 # ensure that the ansible content is accessible
 chmod -R g+r ${WORK_DIR}
 find ${WORK_DIR} -type d -exec chmod g+x {} +
+# ensure that the dynamic inventory dir can have content created
+find ${WORK_DIR} -type d -exec chmod g+wx {} +
 
 # no need for this script to remain in the image after running
 rm $0