adds Docker 1709 support for non grisham

scripts/aarch64__Ubuntu__16.04__Docker__17.09.sh

@@ -0,0 +1,247 @@
+#!/bin/bash
+set -e
+set -o pipefail
+
+###########################################################
+###########################################################
+# Initialization script for Shippable node on
+#   - Architecture aarch64
+#   - Ubuntu 16.04
+#   - Docker 17.06
+###########################################################
+###########################################################
+
+readonly DOCKER_VERSION="17.09.1"
+
+# Indicates if docker service should be restarted
+export docker_restart=false
+
+setup_shippable_user() {
+  if id -u 'shippable' >/dev/null 2>&1; then
+    echo "User shippable already exists"
+  else
+    exec_cmd "sudo useradd -d /home/shippable -m -s /bin/bash -p shippablepwd shippable"
+  fi
+
+  exec_cmd "sudo echo 'shippable ALL=(ALL) NOPASSWD:ALL' | sudo tee -a /etc/sudoers"
+  exec_cmd "sudo chown -R $USER:$USER /home/shippable/"
+  exec_cmd "sudo chown -R shippable:shippable /home/shippable/"
+}
+
+install_prereqs() {
+  echo "Installing prerequisite binaries"
+
+  update_cmd="sudo apt-get update"
+  exec_cmd "$update_cmd"
+
+  install_prereqs_cmd="sudo apt-get -yy install apt-transport-https git python-pip software-properties-common ca-certificates curl"
+  exec_cmd "$install_prereqs_cmd"
+
+  update_cmd="sudo apt-get update"
+  exec_cmd "$update_cmd"
+}
+
+check_swap() {
+  echo "Checking for swap space"
+
+  swap_available=$(free | grep Swap | awk '{print $2}')
+  if [ $swap_available -eq 0 ]; then
+    echo "No swap space available, adding swap"
+    is_swap_required=true
+  else
+    echo "Swap space available, not adding"
+  fi
+}
+
+add_swap() {
+  echo "Adding swap file"
+  echo "Creating Swap file at: $SWAP_FILE_PATH"
+  add_swap_file="sudo touch $SWAP_FILE_PATH"
+  exec_cmd "$add_swap_file"
+
+  swap_size=$(cat /proc/meminfo | grep MemTotal | awk '{print $2}')
+  swap_size=$(($swap_size/1024))
+  echo "Allocating swap of: $swap_size MB"
+  initialize_file="sudo dd if=/dev/zero of=$SWAP_FILE_PATH bs=1M count=$swap_size"
+  exec_cmd "$initialize_file"
+
+  echo "Updating Swap file permissions"
+  update_permissions="sudo chmod -c 600 $SWAP_FILE_PATH"
+  exec_cmd "$update_permissions"
+
+  echo "Setting up Swap area on the device"
+  initialize_swap="sudo mkswap $SWAP_FILE_PATH"
+  exec_cmd "$initialize_swap"
+
+  echo "Turning on Swap"
+  turn_swap_on="sudo swapon $SWAP_FILE_PATH"
+  exec_cmd "$turn_swap_on"
+
+}
+
+check_fstab_entry() {
+  echo "Checking fstab entries"
+
+  if grep -q $SWAP_FILE_PATH /etc/fstab; then
+    exec_cmd "echo /etc/fstab updated, swap check complete"
+  else
+    echo "No entry in /etc/fstab, updating ..."
+    add_swap_to_fstab="echo $SWAP_FILE_PATH none swap sw 0 0 | sudo tee -a /etc/fstab"
+    exec_cmd "$add_swap_to_fstab"
+    exec_cmd "echo /etc/fstab updated"
+  fi
+}
+
+initialize_swap() {
+  check_swap
+  if [ "$is_swap_required" == true ]; then
+    add_swap
+  fi
+  check_fstab_entry
+}
+
+docker_install() {
+  echo "Installing docker"
+
+  add-apt-repository -y "deb [arch=arm64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" && apt-get update
+
+  install_docker="apt-get install -q --force-yes -y -o Dpkg::Options::='--force-confnew' docker-ce=$DOCKER_VERSION~ce-0~ubuntu"
+  exec_cmd "$install_docker"
+
+  get_static_docker_binary="wget https://download.docker.com/linux/static/stable/aarch64/docker-$DOCKER_VERSION-ce.tgz -P /tmp/docker"
+  exec_cmd "$get_static_docker_binary"
+
+  extract_static_docker_binary="tar -xzf /tmp/docker/docker-$DOCKER_VERSION-ce.tgz --directory /opt"
+  exec_cmd "$extract_static_docker_binary"
+
+  remove_static_docker_binary='rm -rf /tmp/docker'
+  exec_cmd "$remove_static_docker_binary"
+}
+
+check_docker_opts() {
+  # SHIPPABLE docker options required for every node
+  echo "Checking docker options"
+
+  SHIPPABLE_DOCKER_CONFIGURATION='{"dns":["8.8.8.8","8.8.4.4"],"data-root":"/data"}'
+
+  # daemon.json is not present
+  if [ ! -f /etc/docker/daemon.json ]; then
+    touch /etc/docker/daemon.json
+  fi
+
+  touch temp_ship_docker_config
+  echo $SHIPPABLE_DOCKER_CONFIGURATION > temp_ship_docker_config
+  local write_daemon_config=false
+  {
+    diff temp_ship_docker_config /etc/docker/daemon.json > /dev/null
+  } ||
+  {
+    write_daemon_config=true
+  }
+  if [ "$write_daemon_config" = true ]; then
+    echo $SHIPPABLE_DOCKER_CONFIGURATION > /etc/docker/daemon.json
+    docker_restart=true
+  fi
+
+  sudo rm temp_ship_docker_config
+
+  SHIPPABLE_DOCKER_OPTS='DOCKER_OPTS="--config-file /etc/docker/daemon.json"'
+  opts_exist=$(grep "$SHIPPABLE_DOCKER_OPTS" /etc/default/docker || echo '')
+
+  # DOCKER_OPTS do not exist or match.
+  if [ -z "$opts_exist" ]; then
+    echo "Removing existing DOCKER_OPTS in /etc/default/docker, if any"
+    sudo sed -i '/^DOCKER_OPTS/d' "/etc/default/docker"
+
+    echo "Appending DOCKER_OPTS to /etc/default/docker"
+    sudo sh -c "echo '$SHIPPABLE_DOCKER_OPTS' >> /etc/default/docker"
+    docker_restart=true
+  else
+    echo "Shippable docker options already present in /etc/default/docker"
+  fi
+
+  if [ ! -f /etc/systemd/system/docker.service ]; then
+    touch /etc/systemd/system/docker.service
+    curl https://raw.githubusercontent.com/moby/moby/master/contrib/init/systemd/docker.service > /etc/systemd/system/docker.service
+    docker_restart=true
+  fi
+
+  if [ ! -f /etc/systemd/system/docker.socket ]; then
+    touch /etc/systemd/system/docker.socket
+    curl https://raw.githubusercontent.com/moby/moby/master/contrib/init/systemd/docker.socket > /etc/systemd/system/docker.socket
+    docker_restart=true
+  fi
+
+  ## remove the docker option to listen on all ports
+  echo "Disabling docker tcp listener"
+  sudo sh -c "sed -e s/\"-H tcp:\/\/0.0.0.0:4243\"//g -i /etc/default/docker"
+}
+
+restart_docker_service() {
+  echo "checking if docker restart is necessary"
+
+  {
+    sudo systemctl is-active docker
+  } ||
+  {
+    docker_restart=true
+  }
+
+  if [ "$docker_restart" = true ]; then
+    echo "restarting docker service on reset"
+    exec_cmd "sudo systemctl daemon-reload"
+    exec_cmd "sudo systemctl restart docker"
+  else
+    echo "docker_restart set to false, not restarting docker daemon"
+  fi
+}
+
+install_ntp() {
+  {
+    check_ntp=$(sudo service --status-all 2>&1 | grep ntp)
+  } || {
+    true
+  }
+
+  if [ ! -z "$check_ntp" ]; then
+    echo "NTP already installed, skipping."
+  else
+    echo "Installing NTP"
+    exec_cmd "sudo apt-get install -y ntp"
+    exec_cmd "sudo service ntp restart"
+  fi
+}
+
+before_exit() {
+  echo $1
+  echo $2
+
+  echo "Node init script completed"
+}
+
+main() {
+  trap before_exit EXIT
+  exec_grp "setup_shippable_user"
+
+  trap before_exit EXIT
+  exec_grp "install_prereqs"
+
+  if [ "$IS_SWAP_ENABLED" == "true" ]; then
+    trap before_exit EXIT
+    exec_grp "initialize_swap"
+  fi
+
+  trap before_exit EXIT
+  exec_grp "docker_install"
+
+  trap before_exit EXIT
+  exec_grp "check_docker_opts"
+
+  trap before_exit EXIT
+  exec_grp "restart_docker_service"
+
+  trap before_exit EXIT
+  exec_grp "install_ntp"
+}
+
+main