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![Outlook
Evaluation from CF Controller API team – Pivotal tracker item [done]
Proposal for incubation in CF Extensions [pending]](https://image.slidesharecdn.com/managing-distributed-cloud-apps-180118135821/85/Managing-distributed-cloud-apps-31-320.jpg)
![Outlook
Evaluation from CF Controller API team – Pivotal tracker item [done]
Proposal for incubation in CF Extensions [pending]
Planed features:
✘ Parallel materialization of artifacts
✘ Rolling updates
✘ Version rollbacks
✘ Application configuration update
✘ Docker support
✘ Lifecycle hooks
✘ Secure configuration management](https://image.slidesharecdn.com/managing-distributed-cloud-apps-180118135821/85/Managing-distributed-cloud-apps-32-320.jpg)
Uploaded byNikolay Valchev
Managing distributed-cloud-apps
The document describes a multi-target application (MTA) deployment descriptor that defines modules, resources, and dependencies for deploying a sample Spring Music application in a distributed cloud environment. The MTA descriptor uses YAML files to specify configuration properties, placeholders, and references that allow flexible deployment of the application and its modules.
Managing distributed-cloud-apps
- 1.
- 2. Managing Distributed CloudNative Applications Made Easy
- 3. Spring Music 2.0 SpringMusic inspired sample ✘ web – songs and albums ✘ news provider ✘ external news provider spring-music Lifecycle Management Unit Version 1.0.0 news provider web DB service instance external news provider
- 4. What are theChallenges? ✘ Develop… ✘ Deployment-specific configuration… ✘ Package and deliver… ✘ Deploy… ✘ Update… ✘ …with no downtime… ✘ Undeploy… Application DevOps Team (~ 2 Pizzas) Other Service Business capability Lifecycle Management Unit Version x.y.z Java (heavy data processing) “BACKEND” Node.Js (heavy data processing) ”FRONTEND” DB service instance “PERSISTE NCE” Geo-spatial Service “EXTERNAL RESOURCE“
- 5. Multi-Target Application (MTA) Businesscapability Lifecycle Management Unit Version x.y.z Java (heavy data processing) “BACKEND” Node.Js (user request processing) ”FRONTEND” DB service instance “PERSISTEN CE” Geo-spatial service “EXTERNAL RESOURCE“ MTA: my-app Module type Resource type Module type Resource type Version x.y.z
- 6. MTA Descriptors ✘ YAMLfiles extends MTA deployment descriptor MTA extension descriptor *1 extends
- 7. MTA Descriptors ✘ YAMLfiles ✘ MTA Deployment Descriptor (mtad.yaml) extends MTA deployment descriptor MTA extension descriptor *1 extends
- 8. MTA Descriptors ✘ YAMLfiles ✘ MTA Deployment Descriptor (mtad.yaml) ✘ MTA Extension Descriptor (*.mtaext) extends MTA deployment descriptor MTA extension descriptor *1 extends
- 9. MTA Deployment Descriptor _schema-version:3 ID: org.cf.samples.spring-music version: 1.0.0 modules: - name: spring-music-web type: java.tomcat path: build/libs/spring-music.jar requires: - name: news-provider properties: NEWS_URL: ~{url} - name: spring-music-db - name: spring-music-news-external parameters: buildpack: java_buildpack properties: POPULATE_ALBUM_REPOSITORY: true - name: spring-music-news type: javascript.nodejs path: spring-music-news/ provides: - name: news-provider properties: url: ${default-url}/news resources: - name: spring-music-db type: managed-service parameters: service: postgresql service-plan: v9.4-container - name: spring-music-news-external type: user-provided-service parameters: config: url: spring-music Lifecycle Management Unit Version 1.0.0 news provider web DB service instance external news provider
- 10. MTA Deployment Descriptor MTAheader ✘ spec version ✘ app ID ✘ version _schema-version: 3 ID: org.cf.samples.spring-music version: 1.0.0 modules: - name: spring-music-web type: java.tomcat path: build/libs/spring-music.jar requires: - name: news-provider properties: NEWS_URL: ~{url} - name: spring-music-db - name: spring-music-news-external parameters: buildpack: java_buildpack properties: POPULATE_ALBUM_REPOSITORY: true - name: spring-music-news type: javascript.nodejs path: spring-music-news/ provides: - name: news-provider properties: url: ${default-url}/news resources: - name: spring-music-db type: managed-service parameters: service: postgresql service-plan: v9.4-container - name: spring-music-news-external type: user-provided-service parameters: config: url:
- 11. MTA Deployment Descriptor Modules ✘name ✘ type ✘ path _schema-version: 3 ID: org.cf.samples.spring-music version: 1.0.0 modules: - name: spring-music-web type: java.tomcat path: build/libs/spring-music.jar requires: - name: news-provider properties: NEWS_URL: ~{url} - name: spring-music-db - name: spring-music-news-external parameters: buildpack: java_buildpack properties: POPULATE_ALBUM_REPOSITORY: true - name: spring-music-news type: javascript.nodejs path: spring-music-news/ provides: - name: news-provider properties: url: ${default-url}/news resources: - name: spring-music-db type: managed-service parameters: service: postgresql service-plan: v9.4-container - name: spring-music-news-external type: user-provided-service parameters: config: url:
- 12. MTA Deployment Descriptor Modules ✘buildpack ✘ route ✘ other parameters _schema-version: 3 ID: org.cf.samples.spring-music version: 1.0.0 modules: - name: spring-music-web type: java.tomcat path: build/libs/spring-music.jar requires: - name: news-provider properties: NEWS_URL: ~{url} - name: spring-music-db - name: spring-music-news-external parameters: buildpack: java_buildpack properties: POPULATE_ALBUM_REPOSITORY: true - name: spring-music-news type: javascript.nodejs path: spring-music-news/ provides: - name: news-provider properties: url: ${default-url}/news resources: - name: spring-music-db type: managed-service parameters: service: postgresql service-plan: v9.4-container - name: spring-music-news-external type: user-provided-service parameters: config: url:
- 13. MTA Deployment Descriptor Modules ✘properties/env _schema-version: 3 ID: org.cf.samples.spring-music version: 1.0.0 modules: - name: spring-music-web type: java.tomcat path: build/libs/spring-music.jar requires: - name: news-provider properties: NEWS_URL: ~{url} - name: spring-music-db - name: spring-music-news-external parameters: buildpack: java_buildpack properties: POPULATE_ALBUM_REPOSITORY: true - name: spring-music-news type: javascript.nodejs path: spring-music-news/ provides: - name: news-provider properties: url: ${default-url}/news resources: - name: spring-music-db type: managed-service parameters: service: postgresql service-plan: v9.4-container - name: spring-music-news-external type: user-provided-service parameters: config: url:
- 14. MTA Deployment Descriptor Modules ✘expose config _schema-version: 3 ID: org.cf.samples.spring-music version: 1.0.0 modules: - name: spring-music-web type: java.tomcat path: build/libs/spring-music.jar requires: - name: news-provider properties: NEWS_URL: ~{url} - name: spring-music-db - name: spring-music-news-external parameters: buildpack: java_buildpack properties: POPULATE_ALBUM_REPOSITORY: true - name: spring-music-news type: javascript.nodejs path: spring-music-news/ provides: - name: news-provider properties: url: ${default-url}/news resources: - name: spring-music-db type: managed-service parameters: service: postgresql service-plan: v9.4-container - name: spring-music-news-external type: user-provided-service parameters: config: url:
- 15. MTA Deployment Descriptor Modules ✘placeholders like ${default-url} resolved automatically _schema-version: 3 ID: org.cf.samples.spring-music version: 1.0.0 modules: - name: spring-music-web type: java.tomcat path: build/libs/spring-music.jar requires: - name: news-provider properties: NEWS_URL: ~{url} - name: spring-music-db - name: spring-music-news-external parameters: buildpack: java_buildpack properties: POPULATE_ALBUM_REPOSITORY: true - name: spring-music-news type: javascript.nodejs path: spring-music-news/ provides: - name: news-provider properties: url: ${default-url}/news resources: - name: spring-music-db type: managed-service parameters: service: postgresql service-plan: v9.4-container - name: spring-music-news-external type: user-provided-service parameters: config: url:
- 16. MTA Deployment Descriptor Modules ✘inject config via reference notation like ~{url} _schema-version: 3 ID: org.cf.samples.spring-music version: 1.0.0 modules: - name: spring-music-web type: java.tomcat path: build/libs/spring-music.jar requires: - name: news-provider properties: NEWS_URL: ~{url} - name: spring-music-db - name: spring-music-news-external parameters: buildpack: java_buildpack properties: POPULATE_ALBUM_REPOSITORY: true - name: spring-music-news type: javascript.nodejs path: spring-music-news/ provides: - name: news-provider properties: url: ${default-url}/news resources: - name: spring-music-db type: managed-service parameters: service: postgresql service-plan: v9.4-container - name: spring-music-news-external type: user-provided-service parameters: config: url:
- 17. MTA Deployment Descriptor Resources ✘name ✘ type _schema-version: 3 ID: org.cf.samples.spring-music version: 1.0.0 modules: - name: spring-music-web type: java.tomcat path: build/libs/spring-music.jar requires: - name: news-provider properties: NEWS_URL: ~{url} - name: spring-music-db - name: spring-music-news-external parameters: buildpack: java_buildpack properties: POPULATE_ALBUM_REPOSITORY: true - name: spring-music-news type: javascript.nodejs path: spring-music-news/ provides: - name: news-provider properties: url: ${default-url}/news resources: - name: spring-music-db type: managed-service parameters: service: postgresql service-plan: v9.4-container - name: spring-music-news-external type: user-provided-service parameters: config: url:
- 18. MTA Deployment Descriptor Resources ✘service label ✘ plan ✘ other parameters _schema-version: 3 ID: org.cf.samples.spring-music version: 1.0.0 modules: - name: spring-music-web type: java.tomcat path: build/libs/spring-music.jar requires: - name: news-provider properties: NEWS_URL: ~{url} - name: spring-music-db - name: spring-music-news-external parameters: buildpack: java_buildpack properties: POPULATE_ALBUM_REPOSITORY: true - name: spring-music-news type: javascript.nodejs path: spring-music-news/ provides: - name: news-provider properties: url: ${default-url}/news resources: - name: spring-music-db type: managed-service parameters: service: postgresql service-plan: v9.4-container - name: spring-music-news-external type: user-provided-service parameters: config: url:
- 19. MTA Deployment Descriptor Resources ✘some parameters unknown on design time _schema-version: 3 ID: org.cf.samples.spring-music version: 1.0.0 modules: - name: spring-music-web type: java.tomcat path: build/libs/spring-music.jar requires: - name: news-provider properties: NEWS_URL: ~{url} - name: spring-music-db - name: spring-music-news-external parameters: buildpack: java_buildpack properties: POPULATE_ALBUM_REPOSITORY: true - name: spring-music-news type: javascript.nodejs path: spring-music-news/ provides: - name: news-provider properties: url: ${default-url}/news resources: - name: spring-music-db type: managed-service parameters: service: postgresql service-plan: v9.4-container - name: spring-music-news-external type: user-provided-service parameters: config: url:
- 20. MTA Deployment Descriptor Modules ✘service bindings _schema-version: 3 ID: org.cf.samples.spring-music version: 1.0.0 modules: - name: spring-music-web type: java.tomcat path: build/libs/spring-music.jar requires: - name: news-provider properties: NEWS_URL: ~{url} - name: spring-music-db - name: spring-music-news-external parameters: buildpack: java_buildpack properties: POPULATE_ALBUM_REPOSITORY: true - name: spring-music-news type: javascript.nodejs path: spring-music-news/ provides: - name: news-provider properties: url: ${default-url}/news resources: - name: spring-music-db type: managed-service parameters: service: postgresql service-plan: v9.4-container - name: spring-music-news-external type: user-provided-service parameters: config: url:
- 21. MTA Extension Descriptor Deploymentcontext dependent Add property values and parameters _schema-version: 3 ID: cf.samples.spring-music.prod-config extends: cf.samples.spring.music modules: - name: spring-music-web parameters: memory: 1G instances: 2 properties: POPULATE_ALBUM_REPOSITORY: false - name: spring-music-news parameters: memory: 128M resources: - name: spring-music-news-external parameters: config: url: https://news-external.my.domain/news
- 22. What is anMTA Archive (MTAR)? ✘ Container, compliant with the JAR specification ✘ Contains modules… … a manifest and the MTA deployment descriptor ✘ Used for distribution of the packaged app MTA deployment descriptor Java WAR Node.Js Code … ...
- 23. CF Deploy Service CFCLI plugin to deploy MTA with a single operation MTA deployment descriptor MTA archive module MTA extension descriptor CF CLI operator Cloud Foundry Cloud Controller CF Deploy Service PostgreSQL database target state workflows cf deploy current state
- 24. CF Deploy Service MTA deployment descriptor MTAarchive module MTA extension descriptor CF CLI operator Cloud Foundry Cloud Controller CF Deploy Service PostgreSQL database target state workflows cf deploy current state ”Server” app with the goal to bring the app to desired state
- 25.
- 26. Supported Operations ✘ Deploy(incl. from Git, in future from directory) ✘ Update (incremental) ✘ Blue-green deploy ✘ Cross-MTA configuration
- 27. Enterprise Qualities ✘ Deterministicdeployment order and timing ✘ Recoverability of a multi-step operation ✘ Logging and auditability ✘ Version evolution policies ✘ Deletion of non-relevant artifacts
- 28. >1000Deploys per day >100Realapps >1500Distinct MTAs (incl. test ones) @ SAP Cloud Platform
- 29. It is OpenSource
- 30. Open Source Availability MTAmodel guide MTA parsers, validators, persistence and utilities CF MTA plugin CF MTA deploy service Spring Music MTA
- 31. Outlook Evaluation from CFController API team – Pivotal tracker item [done] Proposal for incubation in CF Extensions [pending]
- 32. Outlook Evaluation from CFController API team – Pivotal tracker item [done] Proposal for incubation in CF Extensions [pending] Planed features: ✘ Parallel materialization of artifacts ✘ Rolling updates ✘ Version rollbacks ✘ Application configuration update ✘ Docker support ✘ Lifecycle hooks ✘ Secure configuration management
- 33. thanks! Any questions? You canfind me at nikolay.valchev@sap.com nvvalchev@gmail.com
- 34. Credits Special thanks toall the people who made and released these awesome resources for free: ✘ Presentation template by SlidesCarnival ✘ Photographs by Unsplash
- 35. SlidesCarnival icons areeditable shapes. This means that you can: ● Resize them without losing quality. ● Change fill color and opacity. Isn’t that nice? :) Examples:
- 36.
Editor's Notes
- #5 CF-apps which constitute a larger application might even not qualify for being micro-services. Although pushed to an individual container, they might lack the essential micro-services characteristics of being independently deployable units. This happens if they don't expose stable API contracts. Sometimes, it is just not worth the effort to create such contracts because the individual CF-apps might not be created as a result of a domain-driven design approach, but simply for enabling independent scaling of application parts. Another common pattern is to break down the application into a UI-part (also acting as the initial user request processing stage) and a backend-part, each implemented with adequate technologies (e.g. node.js vs. Java). Both parts will be tightly coupled as new backend features need to be reflected on the UI, and a pure compatible evolution of backend APIs is realistically impossible, especially for immature products. Further, application private service instances logically are constituents of the application which needs to be considered during initial deployment, updates and deletions.
- #6 Definition: A multi-target application (MTA) is comprised of multiple software pieces (“modules”) which all share a common lifecycle for development and deployment. These modules can be written in different technologies and deployed to different targets respectively – but they all serve (different aspects of) a particular purpose for the application users.
- #10 Describe the structure of the app
- #24 Deploy with a single operation, which also includes validating the completeness and consistency of an MTA on this platform. Workflow-based Java server application Automating the lifecycle operations of MTA apps in CF Analyses the MTA archive and MTA ext. descriptor to build desired platform model Materialize this desired platform model Integrated in the CF and XSA CLI clients via plugins
- #25 Deploy with a single operation, which also includes validating the completeness and consistency of an MTA on this platform. Workflow-based Java server application Automating the lifecycle operations of MTA apps in CF Analyses the MTA archive and MTA ext. descriptor to build desired platform model Materialize this desired platform model Integrated in the CF and XSA CLI clients via plugins
- #27 Deploy with a single operation, which also includes validating the completeness and consistency
- #28 Deterministic deployment order and timing Recoverability - resume deployment from the point of failure of a multi-step operation Logging and auditability of the entire application lifecycle Implement version evolution policies Deletion of non-relevant technical artifacts
- #32 Proposal for incubation in CF Foundation Establish the standard for CF packaged apps for CF certified platforms Standardize CF packaged apps lifecycle management
- #33 We are working on more lifecycle automation aspects based on the declarative application model. This list is not complete but should show you our intended direction.