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Automating deployments from GitHub using SaltStack

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2018/12/10に開催されたLINE Developer Meetup #47 in Fukuokaでの登壇資料です

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Automating deployments from GitHub using SaltStack

  1. 1. Automating deployments from GitHub using SaltStack Paul Traylor LINE Fukuoka 2018/12/10 LINE Developer Meetup #47 in Fukuoka 1 / 14
  2. 2. What is SaltStack? Salt is a new approach to infrastructure management built on a dynamic communication bus. Salt can be used for data-driven orchestration, remote execution for any infrastructure, configuration management for any app stack, and much more. https://docs.saltstack.com/en/getstarted/overview.html https://docs.saltstack.com/en/getstarted/images/basic-comm.png 2 / 14
  3. 3. What is SaltStack? - Events https://docs.saltstack.com/en/getstarted/images/reactor.png 3 / 14
  4. 4. What is SaltStack? - Events salt-run state.event pretty=True salt/auth salt/key salt/job/<JID>/new salt/job/<JID>/ret/<MINION> salt/run/<JID>/new salt/run/<JID>/ret salt/beacon/... salt/job/20150923203228234305/ret/minion2 { "_stamp": "2015-09-23T20:32:28.291789", "cmd": "_return", "fun": "test.ping", "fun_args": [], "id": "minion2", "jid": "20150923203228234305", "retcode": 0, "return": true, "success": true } https://docs.saltstack.com/en/getstarted/event/events.html 4 / 14
  5. 5. What is SaltStack? - Reactor https://docs.saltstack.com/en/latest/topics/reactor/ reactor: # Master config section "reactor" - 'salt/minion/*/start': # Match tag "salt/minion/*/start" - /srv/reactor/start.sls # Things to do when a minion starts - /srv/reactor/monitor.sls # Other things to do - 'salt/cloud/*/destroyed': # Globs can be used to match tags - /srv/reactor/destroy/*.sls # Globs can be used to match file names - 'myco/custom/event/tag': # React to custom event tags - salt://reactor/mycustom.sls # Reactor files can come from the salt fileserver 5 / 14
  6. 6. What is SaltStack? - Returners https://docs.saltstack.com/en/getstarted/images/returners.png 6 / 14
  7. 7. What is SaltStack? - Returners http://docs.saltstack.com/en/latest/ref/returners/ elasticsearch kafka mongo mysql postgres redis ... 7 / 14
  8. 8. How do we use this ? Events Returners Reactors 8 / 14
  9. 9. Events - Enable Webhooks # salt-master configuration # Load a simple webhook so that we can easily map GitHub webhooks # to our salt state engines: - webhook: {} http://docs.saltstack.com/en/latest/ref/engines/all/salt.engines.webhook.html 9 / 14
  10. 10. Events - GitHub Webhooks Post to our Salt Master will fire an event curl -X POST http://salt.example.com/github <<EOF {webhook json body} EOF is put onto the Salt event bus salt/engines/hook/github {webhook json body} 10 / 14
  11. 11. Reactors - Map our event to a reactor # salt-master configuration reactor: - 'salt/engines/hook/github': - salt://_reactor/autodeploy.sls 11 / 14
  12. 12. Reactors - Write our Reactor #!yaml|github # salt://_reactor/autodeploy.sls # Whenever we update Promgen line/promgen: # we want to deploy the master branch refs/heads/master: deploy-promgen-web: # by applying a salt state local.state.sls: # matching our promgen servers - tgt: role:promgen - tgt_type: pillar - args: - mods: promgen.web # and let me know the result on slack - ret: slack https://github.com/kfdm/salt-deployhook 12 / 14
  13. 13. What is SaltStack ? Events Returners Reactors Automate your infrastructure 13 / 14
  14. 14. Questions? https://linefukuoka.co.jp/ja/career/engineer 14 / 14

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