Starting micro and terminating all ec2 instances.

Author: arssher

devops/ec2.yml

@@ -0,0 +1,46 @@
+### Manage ec2 instances. Env vars AWS_ACCESS_KEY_ID and AWS_ACCESS_KEY are
+# required!
+
+---
+- hosts: localhost
+  gather_facts: False
+  vars:
+    key_name: aws
+    security_group: cluster
+    count: 3
+    vpc_subnet_id: subnet-99ba45d4
+    region: eu-central-1
+
+  tasks:
+  - name: start instances
+    ec2:
+      key_name: "{{ key_name }}"
+      instance_type: "{{ instance_type }}"
+      image: "{{ image }}"
+      group: "{{ security_group }}"
+      count: "{{ count }}"
+      vpc_subnet_id: "{{ vpc_subnet_id }}"
+      region: "{{ region }}"
+      wait: yes
+      assign_public_ip: yes
+    vars:
+      instance_type: t2.micro
+      image: ami-1e339e71 # basic ubuntu backed by ebs
+    tags:
+      - micro
+
+  - import_tasks: tasks/clean_ec2_cache.yml
+    tags:
+      - terminate
+
+  - name: terminate all ec2 instances
+    ec2:
+      state: absent
+      region: "{{ region }}"
+      instance_ids: "{{ hostvars[item]['ec2_id'] }}"
+      wait: "{{ wait }}"
+    with_items: "{{ groups.ec2 }}"
+    vars:
+      wait: no
+    tags:
+      - terminate

devops/inventory

@@ -1,4 +1,7 @@
-localhost
+[localhost]
+# handles ec2 module bugs
+localhost ansible_connection=local ansible_python_interpreter=python
+
 
 [nodes]
 # nodes consists of 'manual' (e.g. for local testing) and 'ec2' autogenerated
@@ -17,7 +20,7 @@ pg_repo=git://git.postgresql.org/git/postgresql.git
 pg_version_tag=REL_10_STABLE
 pg_prefix="{{ansible_env.HOME}}/pg"
 pg_src="{{pg_prefix}}/src"
-cflags="-O0"
+cflags="-O2"
 pg_dst="{{pg_prefix}}/install"
 pg_datadir="{{pg_prefix}}/data_{{pg_port}}"
 pg_logfile="{{pg_datadir}}/pg.log"

devops/readme.txt

@@ -60,6 +60,11 @@ ansible-playbook -i inventory_ec2/ pgbench_prepare.yml -e "scale=10 nparts=10 re
 Gather logs to ./logs:
 ansible-playbook -i inventory_ec2/ logs.yml
 
+Start micro instances:
+ansible-playbook -i inventory_ec2/ ec2.yml --tags "micro" -e "count=2"
+Terminate all ec2 instances:
+ansible-playbook -i inventory_ec2/ ec2.yml --tags "terminate"
+
 Ubuntu images EC2 locator:
 https://cloud-images.ubuntu.com/locator/ec2/
 We need ami-4199282e.

devops/tasks/clean_ec2_cache.yml

@@ -0,0 +1,4 @@
+---
+
+- name: clean ec2 cache
+  shell: "rm -rf ~/.ansible/tmp/ansible-ec2-*"