Engineering for Failure Building for the unhappy path

Kerim Satirli Senior Engineer, IceMobile

Chris Grigor Ops Manager, IceMobile

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The Cloud (someone else’s computer somewhere, with an API)

Engineering for Speed “I know what you did last summer”

- name: Check to see if pip is already installed command: "pip --version" ignore_errors: true changed_when: false register: pip_is_installed - name: Get pip get_url: url=https://bootstrap.pypa.io/get-pip.py dest=/home/ec2-user when: pip_is_installed.rc != 0 - name: install pip command: "python /home/ec2-user/get-pip.py" sudo: yes when: pip_is_installed.rc != 0 - name: delete get-pip.py file: state=absent path=~/get-pip.py when: pip_is_installed.rc != 0 - name: Installing docker-py for ansible pip: name=docker-py version=1.1.0 #executable=/usr/local/bin/pip sudo: yes - name: Adding Docker Hub robot login copy: src=../resources/dockercfg dest=/home/ec2-user/.dockercfg owner=ec2-user

- name: Check to see if pip is already installed command: "pip --version" ignore_errors: true changed_when: false register: pip_is_installed - name: Get pip get_url: url=https://bootstrap.pypa.io/get-pip.py dest=/home/ec2-user when: pip_is_installed.rc != 0 - name: install pip command: "python /home/ec2-user/get-pip.py" sudo: yes when: pip_is_installed.rc != 0 - name: delete get-pip.py file: state=absent path=~/get-pip.py when: pip_is_installed.rc != 0 - name: Installing docker-py for ansible pip: name=docker-py version=1.1.0 #executable=/usr/local/bin/pip sudo: yes - name: Adding Docker Hub robot login copy: src=../resources/dockercfg dest=/home/ec2-user/.dockercfg owner=ec2-user IT WORKS!

Ansible 2.0 early adopter

Ansible 2.0 it’s called bleeding edge for a reason

Engineering for Failure a beginner’s guide

Fail early and don’t waste my time!

Fail clearly and tell me where it hurts!

Engineering for Failure live-action test

A tale of Vaults passwords in the cloud!

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- include: ./notify-datadog.yml vars: event_type: error api_key: "{{ datadog.api_key }}" event_title: "Checksum mismatch for {{ name }} v{{ version }}" event_text: "{{ fetch_application_package.msg }}" event_priority: "{{ datadog.priority }}" event_tags: "app:{{ name | lower }}, \ version:{{ version }}, \ type:checksum-mismatch" when: fetch_application_package.failed is defined tags: - fhp_datadog_checksum

A tale of Vaults and a key-value service

- # validate config file include: ../../roles/validate-file/tasks/main.yml vars: validation_file: "{{ config.dirs.etc }}/{{ config.file }}" validation_type: json validation_result_var: consulconfig_validation tags: - pc_validate_configfile

--- - shell: "cat {{ validation_file }}" register: res - set_fact: "{{ vldtn_res_var | default(vldtn_res)}}": \ "{{ res.stdout | from_json }}" when: validation_type == "json" - set_fact: "{{ vldtn_res_var | default(vldtn_res)}}": \ "{{ res.stdout | from_yaml }}" when: validation_type == "yaml"

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Engineering for Failure Building for the unhappy path

@grigorc @ksatirli

The mobile agency for food retail