Merge pull request #2906 from edx/bbeggs/cd

Ansible playbook to launch an instance for the release-pipeline work.

playbooks/continuous_delivery/launch_instance.yml

+# This playbook will launch an ec2 instance in a VPC.
+# This instance will have an autogenerated key.
+#
+# required variables for this playbook:
+#   - ec2_subnet_id           - Subnet to bring up the ec2 instance
+#   - base_ami_id             - The base base AMI-ID
+#   - ec2_vpc_subnet_id       - The Subnet ID to bring up the instance
+#   - ec2_security_group_id   - The security group ID to use
+#
+# Other Variables:
+#   - ec2_region              - The region the server should be brought up in
+#   - ec2_instance_type       - The instance type to use
+#   - ebs_volume_size         - Size in GB for the root volume
+#   - ec2_timeout             - Time in seconds to wait for an ec2 instance become available
+#   - ec2_assign_public_ip    - (yes/no) should the instance have a public IP address?
+#
+# This playbook generates a directory with 2 artifact files:
+#   - launch_template.yml     - A yaml file with information such as the instance ID and internal IP address of the instance launched
+#   - key.pem                  - The private key file for the newly generated keypair
+#
+# Example command line to run this playbook:
+#    ansible-playbook -i "localhost," -c local -e @overrides.yml launch_instance.yml
+#
+
+- hosts: all
+  vars:
+    artifact_path: /tmp/ansible-runtime
+    ec2_region: us-east-1
+    ec2_instance_type: t2.medium
+    ebs_volume_size: 8
+    ec2_timeout: 500
+    ec2_assign_public_ip: no
+  gather_facts: False
+  connection: local
+  tasks:
+
+  - name: Generate UUID for keypair
+    command: cat /proc/sys/kernel/random/uuid
+    register: unique_key_name
+
+  - name: Generate ec2 keypair to use for this instance
+    ec2_key:
+      name: "{{ unique_key_name.stdout }}"
+      region: "{{ ec2_region }}"
+    register: ssh_key_register
+
+  - name: Ensure artifact directory exists
+    file:
+      path: "{{ artifact_path }}/{{ unique_key_name.stdout }}/"
+      state: directory
+      force: yes
+
+  - name: Launch EC2 instance
+    ec2:
+      instance_tags: {"Name" : "gocd automation run -- {{ unique_key_name.stdout }}"}
+      region: "{{ ec2_region }}"
+      key_name: "{{ unique_key_name.stdout }}"
+      instance_type: "{{ ec2_instance_type }}"
+      image: "{{ base_ami_id }}"
+      wait: yes
+      group_id: "{{ ec2_security_group_id }}"
+      count: 1
+      vpc_subnet_id: "{{ ec2_vpc_subnet_id }}"
+      assign_public_ip: "{{ ec2_assign_public_ip }}"
+      volumes:
+        - device_name: /dev/xvda
+          volume_type: standard
+          volume_size: "{{ ebs_volume_size }}"
+      wait: yes
+      wait_timeout: "{{ ec2_timeout }}"
+    register: ec2_instance_register
+
+  - name: Wait for SSH to come up
+    wait_for:
+      host: "{{ ec2_instance_register.instances[0].private_ip }}"
+      port: 22
+      delay: 60
+      timeout: "{{ ec2_timeout }}"
+      state: started
+
+  - name: Generate artifact for jobs down stream
+    template:
+      src: templates/local/launch_template.yml.j2
+      dest: "{{ artifact_path }}/{{ unique_key_name.stdout }}/launch_info.yml"
+      mode: 0600
+
+  - name: Generate key material artifact for jobs down stream
+    template:
+      src: templates/local/key.pem.j2
+      dest: "{{ artifact_path }}/{{ unique_key_name.stdout }}/key.pem"
+      mode: 0600
+
+

playbooks/continuous_delivery/roles

+../roles
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playbooks/continuous_delivery/templates/local/key.pem.j2

+{{ ssh_key_register.key.private_key }}
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playbooks/continuous_delivery/templates/local/launch_template.yml.j2

+keypair_id: {{ unique_key_name.stdout }}
+key_material_file: {{ artifact_path }}/{{ unique_key_name.stdout }}/key.pem
+instance_id: {{ ec2_instance_register.instances[0].id }}
+instance_ip: {{ ec2_instance_register.instances[0].private_ip }}
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