#+TODO: TODO(t) NEXT(n) WAITING(w) SOMEDAY(s) DELEGATED(g) PROJ(p) PLANNED(l) | DONE(d) FORWARDED(f) CANCELLED(c)
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#+PRIORITIES: A D D
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#+OPTIONS: H:1 author:nil toc:nil date:nil t:nil <:t e:t p:t num:nil
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#+TITLE: OpenShift Diagrams by Olaf Bohlen
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#+LaTeX_CLASS: article
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#+LaTeX_HEADER: \usepackage[ttscale=.875]{libertine}
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#+LaTeX_HEADER: \usepackage{sectsty}
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#+LaTeX_HEADER: \sectionfont{\normalfont\scshape}
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#+LaTeX_HEADER: \subsectionfont{\normalfont\itshape}
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#+LATEX_HEADER: \renewcommand\maketitle{}
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* Deployment on OpenShift with images using Kubernetes Deployments
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#+BEGIN_SRC ditaa :file ocp-dep-image1.png :cmdline -r
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oc new-app sample.registry.org/user/image:tag
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| (1) +-------------+ points to +------------------------------------+
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+---> | ImageStream | -----------> | external Registry cRED {s} |
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| | (IS) | | sample.registry.org/user/image:tag |
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| +-------------+ +------------------------------------+
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| ^
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| | points to
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| (2) +------------------+ (5) creates +-----------------------+
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+---> | Deployment | --------------------------------> | ReplicaSet |
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| | | (4) | |
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| | | -------------------+ +-----------------------+
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| +------------------+ creates | |
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| | |scales &
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| v |monitors
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| (3) +---------+ load balances +----------------+ |
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+---> | Service | --------------> | ApplicationPod | <-------------+
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| (SVC) | | |
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+---------+ +----------------+
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#+END_SRC
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* Deployment on OpenShift with images using OpenShift DeploymentConfigs (dc)
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#+BEGIN_SRC ditaa :file ocp-dep-image2.png :cmdline -r
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oc new-app sample.registry.org/user/image:tag
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| (1) +-------------+ points to +------------------------------------+
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+---> | ImageStream | -----------> | external Registry cRED {s} |
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| | (IS) | | sample.registry.org/user/image:tag |
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| +-------------+ +------------------------------------+
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| ^
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| | points to
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| (2) +------------------+ (5) creates +-----------------------+
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+---> | DeploymentConfig | --------------------------------> | ReplicationController |
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| | (DC) | (4) +-----------+ | (RC) |
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| | | ---------> | DeployPod | +-----------------------+
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| +------------------+ creates +-----------+ |
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| | (6) creates |scales &
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| v |monitors
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| (3) +---------+ load balances +----------------+ |
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+---> | Service | --------------> | ApplicationPod | <-------------+
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| (SVC) | | |
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+---------+ +----------------+
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#+END_SRC
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#+results:
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[[file:ocp-dep-image1.png]]
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* Deployment on OpenShift with Source-to-Image (S2I) using Kubernetes Deployments
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#+BEGIN_SRC ditaa :file ocp-dep-s2i1.png :cmdline -rE
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oc new-app http://git.repo-server.org/sampleapp
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| (1) +-------------+ points to +----------------------------+ +------------------------------------+
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+---> | ImageStream | -----------> | internal Registry cBLU {s} | | external Registry cRED {s} |
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| | (IS) |<+ | sampleapp:latest | | sample.registry.org/ose/s2ibuilder |
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| +-------------+ | +----------------------------+ +------------------------------------+
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| | ^ ^
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| | | (9) docker commits | points to
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| | | |
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| (2) +-------------+ |(5) creates +--------------+ (6) docker run +-----------------+
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+---> | BuildConfig | |-----------> | BuilderPod | ------------------> | S2I ImageStream |
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| | (BC) | | | (8) assemble | | (IS) |
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| +-------------+ | +--------------+ +-----------------+
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| | | | (7) git clone ^
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| +--=-----|----=-------------|---=----------------------------------+
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| ImageChange | |
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| Trigger watches| v
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| S2I IS | +--------------------------------------+
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| | | git Repository {s} |
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build | | | http://git.repo-server.org/sampleapp |
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step | : +--------------------------------------+
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-=-----|-=--------------------|--=-------------------------------------------------------------------------------------
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deploy | |ImageChange
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step | |Trigger
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| |watches IS
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| (3) +------------------+ (11) creates +-----------------------+
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+---> | Deployment | --------------------------------> | ReplicaSet |
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| | | (10) | |
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| | | -------------------+ +-----------------------+
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| +------------------+ creates | |
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| | |scales &
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| v |monitors
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| (4) +---------+ load balances +----------------+ |
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+---> | Service | --------------> | ApplicationPod | <-------------+
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| (SVC) | | |
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+---------+ +----------------+
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#+END_SRC
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* Deployment on OpenShift with Source-to-Image (S2I) using DeploymentConfigs (dc)
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#+BEGIN_SRC ditaa :file ocp-dep-s2i2.png :cmdline -rE
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oc new-app http://git.repo-server.org/sampleapp
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| (1) +-------------+ points to +----------------------------+ +------------------------------------+
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+---> | ImageStream | -----------> | internal Registry cBLU {s} | | external Registry cRED {s} |
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| | (IS) |<+ | sampleapp:latest | | sample.registry.org/ose/s2ibuilder |
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| +-------------+ | +----------------------------+ +------------------------------------+
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| | ^ ^
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| | | (9) docker commits | points to
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| | | |
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| (2) +-------------+ |(5) creates +--------------+ (6) docker run +-----------------+
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+---> | BuildConfig | |-----------> | BuilderPod | ------------------> | S2I ImageStream |
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| | (BC) | | | (8) assemble | | (IS) |
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| +-------------+ | +--------------+ +-----------------+
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| | | | (7) git clone ^
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| +--=-----|----=-------------|---=----------------------------------+
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| ImageChange | |
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| Trigger watches| v
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| S2I IS | +--------------------------------------+
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| | | git Repository {s} |
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build | | | http://git.repo-server.org/sampleapp |
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step | : +--------------------------------------+
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-=-----|-=--------------------|--=-------------------------------------------------------------------------------------
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deploy | |ImageChange
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step | |Trigger
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| |watches IS
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| (3) +------------------+ (11) creates +-----------------------+
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+---> | DeploymentConfig | --------------------------------> | ReplicationController |
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| | (DC) | (10) +-----------+ | (RC) |
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| | | ---------> | DeployPod | +-----------------------+
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| +------------------+ creates +-----------+ |
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| | (12) creates |scales &
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| v |monitors
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| (4) +---------+ load balances +----------------+ |
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+---> | Service | --------------> | ApplicationPod | <-------------+
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| (SVC) | | |
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+---------+ +----------------+
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#+END_SRC
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#+results:
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[[file:ocp-dep-s2i1.png]]
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* Input Detection OpenShift
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#+begin_src plantuml :file openshift-input-detection.png
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!pragma useVerticalIf on
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:oc new-app <input spec>;
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if (docker pull) then (yes)
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-> yes
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--docker-image= forces this;
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:docker run;
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note: --docker-image= forces this
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stop
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else (no)
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:try for an SCM code repo;
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note: --code forces this
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if (git clone) then (no)
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:abort with error;
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stop
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elseif (Dockerfile found?) then (yes)
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:docker build;
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note: --strategy=docker forces this
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:docker run;
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stop
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else (no)
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:continue with S2I;
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note right: --strategy=source forces this
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if (pom.xml found?) then (yes)
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:search for JEE S2I builder;
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note: use -i to suggest an S2I image stream (tag);
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:continue with S2I process;
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stop
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elseif (index.php found?) then (yes)
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:search for PHP S2I builder;
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note
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prefix the git url with builderis~ (tilda!)
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to turn off language detection and force this builder
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end note
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:continue with S2I process;
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stop
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else
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:abort with error;
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stop
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endif
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#+end_src
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#+results:
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[[file:openshift-input-detection.png]]
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