Merge pull request #1859 from edx/db/birch-upgrade-scripts

Add a migration script for Birch

util/vagrant/migrate.sh

+#!/usr/bin/env bash
+
+# defaults
+CONFIGURATION="fullstack"
+TARGET="named-release/birch"
+INTERACTIVE=true
+
+read -d '' HELP_TEXT <<- EOM
+Attempts to migrate your Open edX installation to a different release.
+
+-c CONFIGURATION
+    Use the given configuration. Either \"devstack\" or \"fullstack\".
+    Defaults to \"$CONFIGURATION\"
+-t TARGET
+    Migrate to the given git ref. Defaults to \"$TARGET\"
+-y
+    Run in non-interactive mode (reply \"yes\" to all questions)
+-h
+    Show this help and exit.
+EOM
+
+# override defaults with options
+while getopts "hc:t:y" opt; do
+  case "$opt" in
+    h)
+      echo  "$HELP_TEXT"
+      exit 0
+      ;;
+    c)
+      CONFIGURATION=$OPTARG
+      ;;
+    t)
+      TARGET=$OPTARG
+      ;;
+    y)
+      INTERACTIVE=false
+      ;;
+  esac
+done
+
+if [[ $TARGET == *birch* && $INTERACTIVE == true ]] ; then
+  cat <<"EOM"
+          WARNING WARNING WARNING WARNING WARNING
+The Birch release of Open edX depends on MySQL 5.6 and MongoDB 2.6.4.
+The Aspen release of Open edX depended on MySQL 5.5 and MongoDB 2.4.7.
+Please make sure that you have already upgraded MySQL and MongoDB
+before continuing.
+
+If MySQL or MongoDB are not at the correct version, this script will
+attempt to automatically upgrade them for you. However, this process
+can fail, and IT RUNS THE RISK OF CORRUPTING ALL YOUR DATA.
+Here there be dragons.
+
+         .>   )\;`a__
+        (  _ _)/ /-." ~~
+         `( )_ )/
+          <_  <_
+
+Once you have verified that your MySQL and MongoDB versions are correct,
+or you have decided to risk the automatic upgrade process, type "yes"
+followed by enter to continue. Otherwise, press ctrl-c to quit. You can
+also run this script with the -y flag to skip this check.
+
+Do you wish to proceed?
+EOM
+  read input
+  if [ "$input" != "yes" -a "$input" != "y" ]; then
+    echo "Quitting"
+    exit 1
+  fi
+fi
+
+if [ -f /edx/app/edx_ansible/server-vars.yml ]; then
+  SERVER_VARS="--extra-vars=\"@/edx/app/edx_ansible/server-vars.yml\""
+fi
+
+TEMPDIR=`mktemp -d`
+chmod 777 $TEMPDIR
+cd $TEMPDIR
+git clone https://github.com/edx/configuration.git --depth=1 --single-branch --branch=$TARGET
+echo "edx_platform_version: $TARGET" >> vars.yml
+echo "ora2_version: $TARGET" >> vars.yml
+echo "certs_version: $TARGET" >> vars.yml
+echo "forum_version: $TARGET" >> vars.yml
+echo "xqueue_version: $TARGET" >> vars.yml
+cd configuration/playbooks
+sudo /edx/app/edx_ansible/venvs/edx_ansible/bin/ansible-playbook \
+    --inventory-file=localhost, \
+    --connection=local \
+    --extra-vars=\"@../../vars.yml\" \
+    $SERVER_VARS \
+    vagrant-$CONFIGURATION.yml
+# if this failed, bail out early
+exitcode=$?
+if [ $exitcode != 0 ]; then
+  exit $exitcode;
+fi
+cd /
+rm -rf $TEMPDIR
+echo "Migration complete. Please reboot your machine."