Build your first serverless applica2on on Apache OpenWhisk. Ying Chun Guo (Daisy)

Transcription

1 Build your first serverless applica2on on Apache OpenWhisk Ying Chun Guo (Daisy) 1

2 Self Introduc.on Ying Chun Guo Daisy IBM senior soiware engineer 9 years experience in open source communi2es, i.e. OpenOffice and OpenStack Ini2ator of OpenStack I18n team, the first PTL Apache OpenWhisk commiuer Contact with me with WeChat 2

3 Agenda Set up your own OpenWhisk environment Basic OpenWhisk programming model Advanced OpenWhisk programming model Demo Summary 3

4 Set up your own OpenWhisk env Quick start using Vagrant * Na2ve development * Mac Ubuntu Deploying distributed OpenWhisk using Ansible hups://github.com/apache/incubator-openwhisk/blob/master/ansible/ README_DISTRIBUTED.md Deploying OpenWhisk on Kubernetes hups://github.com/apache/incubator-openwhisk-deploy-kube 4

5 Set up your own OpenWhisk env: Quick start using Vagrant Supported OS: Mac OS X El Capitan, Ubuntu LTS and Windows. Requirements VirtualBox Vagrant Commands: git clone --depth=1 hups://github.com/apache/incubator-openwhisk.git openwhisk cd openwhisk/tools/vagrant./hello 5

6 Set up your own OpenWhisk env: Na.ve development Supported OS: Ubuntu LTS, Mac Requirements VirtualBox Vagrant Commands: #1 Install all required soiware git clone --depth=1 hups://github.com/apache/incubator-openwhisk.git openwhisk cd openwhisk/tools/ubuntu-setup./all.sh #2 Config a data store: CouchDB/Cloudant #3./gradlew distdocker hups://github.com/apache/incubator-openwhisk/blob/master/tools/ubuntu-setup/readme.md hups://developer.ibm.com/code/2016/05/23/setup-openwhisk-use-local-couchdb/ 6

7 Set up your own OpenWhisk env: Using IBM Cloud PlaEorm Register an account on hups://console.ng.bluemix.net Download OpenWhisk CLI: Config OpenWhisk namespace and authoriza2on key wsk property set --apihost openwhisk.ng.bluemix.net auth xxxx-xxxxxxxx-xxxx 7

8 Basic OpenWhisk programming model Ac2on Trigger Rule Package 8

9 OpenWhisk Programming Model 9

10 Ac.on hups://github.com/openwhisk/openwhisk/blob/master/docs/ac2ons.md 10

11 Ac.on 11

12 Ac.on wsk ac2on create --docker ACTION_NAME DOCKER_IMAGE_NAME 12

13 Ac.on wsk ac2on create my_seq --sequence ACTION_NAME1,ACTION_NAME2 13

14 Common commands 列列出当前已有的 ac2on wsk ac2on list 创建 ac2on wsk ac2on create ACTION_NAME ACTION 例例 :wsk ac2on create handler handler.js 调 用 ac2on wsk ac2on invoke -r ACTION_NAME 例例 :wsk ac2on invoke r handler 删除 ac2on wsk ac2on delete ACTION_NAME 14

15 Trigger hups://github.com/openwhisk/openwhisk/blob/master/docs/triggers_rules.md 15

16 Common commands 列列出已有的 trigger wsk trigger list 创建 trigger wsk trigger create TRIGGER_NAME [flags] 例例 :wsk trigger create my_event 触发 trigger wsk trigger fire TRIGGER_NAME [PAYLOAD] [flags] 例例 :wsk trigger fire my_event 删除 trigger wsk trigger delete TRIGGER_NAME 16

17 Rule hups://github.com/openwhisk/openwhisk/blob/master/docs/triggers_rules.md 17

18 Common commands 列列出已有的 rule wsk rule list 创建 rule wsk rule create RULE_NAME TRIGGER_NAME ACTION_NAME [flags] 例例 :wsk rule create my_rule my_event handler 打开监控 wsk ac2va2on poll 触发 trigger wsk trigger fire my_event 例例 :wsk trigger fire my_event 查看结果 wsk ac2va2on result ACTIVATION_ID 删除 rule wsk rule delete RULE_NAME 18

19 Package hups://github.com/openwhisk/openwhisk/blob/master/docs/packages.md 19

20 Common commands 列列出已有的包 wsk package list [NAMESPACE] [flags] 列列出缺省名字空间下 面的包 :wsk package list 列列出系统名字空间下 面的包 :wsk package list /whisk.system 察看某 一个包的内容 wsk package get PACKAGE_NAME [FIELD_FILTER] [flags] 例例如 :wsk package get --summary /whisk.system/watsontexttospeech 20

21 Advanced OpenWhisk programming model Feed Web Ac2on Gateway 21

22 Feed an event producer service exposed by users in a package hups://github.com/openwhisk/openwhisk/blob/master/docs/feeds.md 22

23 Common commands 察看系统包 /whisk.system/alarm wsk package get --summary /whisk.system/alarms 创建 一个触发器器 wsk trigger create every-20-seconds --feed /whisk.system/alarms/alarm -- param cron "*/20 * * * * *" 在另 一个窗 口中打开监控 wsk ac2va2on poll 设定规则 wsk rule create invoke-periodically every-20-seconds handler 禁 用规则 wsk rule disable invoke-periodically 23

24 Web Ac.on An action which can be invoked using a URL without the need for credentials. hups://console.ng.bluemix.net/openwhisk/apimanagement

25 API Gateway The API Gateway acts as a proxy to Web Actions and provides them with additional features including HTTP method routing, client id/secrets, rate limiting, CORS, view API usage and response logs, and define API sharing policies. hups://console.ng.bluemix.net/docs/openwhisk/openwhisk_apigateway.html

26 Common commands 创建 Web ac2on wsk ac2on create ACTION_NAME ACTION_SOURCE web true 创建 API Gateway 的 一个项 目 wsk api create [BASE_PATH] API_PATH API_VERB ACTION 列列出所有 API Gateway 的所有项 目 wsk api list 删除 API Gateway 的项 目 wsk api delete BASE_PATH API_PATH 26

27 Demo Demo 1 Ac2on, trigger, rule, feed Demo 2 Web ac2on, API Gateway Demo 3 Slack integra2on Package binding 27

28 Demo1 28

29 Demo 2 Web Ac2on API Gateway Web Ac2on $ wsk package create demo $ wsk ac2on create demo/hello hello.js --web true $ curl hups://openwhisk.ng.bluemix.net/api/v1/ web/guoyingc@cn.ibm.com_daisyguo-space/ demo/hello.hup $ wsk bluemix login --user <your > --password <your password> $ wsk api create /hello /world get / guoyingc@cn.ibm.com_daisyguo-space/demo/hello --responsetype json $ curl hups://service.us.apiconnect.ibmcloud.com/gws/ apigateway/api/13e333c7ef2cf dc64ebc7d295ef5/hello/ world 29

30 Demo 3 every-20-seconds (Trigger) Slack-invoker (Rule) ac2onsequence (Ac2on) /whisk.system/ alarms/alarm (Feed) handler (Ac2on) /myslack/post (Ac2on) $ wsk package bind /whisk.system/slack myslack --param url "hups://hooks.slack.com/services/t5etl0e0k/ B5QHTQRL2/E4qR1KAOYWlZXiUTZQ0OmTDn" --param username "Timer" --param channel "general $ wsk ac2on invoke /guoyingc@cn.ibm.com_daisyguo-space/myslack/post --result --param text "hello" $ wsk ac2on create sequenceac2on --sequence /guoyingc@cn.ibm.com_daisyguo-space/handler,/ guoyingc@cn.ibm.com_daisyguo-space/myslack/post $ wsk ac2on invoke -r sequenceac2on $ wsk rule create slack-invoker-2mely every-20-seconds sequenceac2on hups://console.ng.bluemix.net/docs/openwhisk/openwhisk_slack.html#openwhisk_catalog_slack 30

31 Summary Set up your own OpenWhisk environment Basic OpenWhisk programming model Advanced OpenWhisk programming model 31

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