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# regarding copyright ownership.  The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.

version: "3"

vars:
  SSH: "/usr/bin/ssh -oStrictHostKeyChecking=no"

tasks:
  prereq:
    silent: true
    cmds:
      - test -n "$GCLOUD_PROJECT" || die "Please configure GCloud with 'ops config gcloud'"
      - gcloud --version >/dev/null || die 'You need to install and configure the gcloud CLI tool before running this command.'
      - config GCLOUD_PREREQ_OK="true"
    status:
    - config GCLOUD_PREREQ_OK

  vm-list:
    silent: true
    cmds:
      - task: prereq
      - echo "*** Created VM:"
      - gcloud compute instances list --filter="labels.ops=true" --format="table(name,zone)"

  vm-firewall-rule:
    silent: true
    cmds:
    - > 
      gcloud compute firewall-rules describe openserverless-vm ||
      gcloud compute firewall-rules create openserverless-vm 
      --allow tcp:80,tcp:443,tcp:6443,tcp:16443 
      --target-tags=openserverless-vm

  vm-create:
    silent: true
    cmds:
      - task: prereq
      - task: vm-firewall-rule
      - > 
       cat "$(realpath $GCLOUD_SSHKEY)" |
       awk '/ssh-rsa/{ print "ubuntu:ssh-rsa " $2 }'
       >_sshkey
      - >
        gcloud compute instances describe "{{._name_}}" --zone="$GCLOUD_REGION" 2>/dev/null >/dev/null
        || gcloud compute instances 
        create "{{._name_}}" --zone="$GCLOUD_REGION"
        --machine-type="$GCLOUD_VM"
        --boot-disk-size="$GCLOUD_DISK"GB
        --image-family="$GCLOUD_IMAGE"
        --image-project=ubuntu-os-cloud
        --tags=openserverless-vm
        --labels=ops=true
        --metadata-from-file=ssh-keys=_sshkey 
      - task: vm-getip
      - >
        echo "*** Waiting until the VM is ready..." ;
        retry -t 1000 -m 1800 {{.SSH}} 
        "ubuntu@$(cat _vm-ip)" hostname

  vm-getip:
    silent: true
    cmds:
    - >
      gcloud compute instances 
      describe "{{._name_}}" --zone="$GCLOUD_REGION"
      --format='get(networkInterfaces[0].accessConfigs[0].natIP)' >_vm-ip
    - cat _vm-ip

  vm-delete:
    cmds:
    - > 
      gcloud compute instances 
      delete "{{._name_}}" 
      --zone="$GCLOUD_REGION"