| commit | author | age | ||
| a812b5 | 1 | #+TODO: TODO(t) NEXT(n) WAITING(w) SOMEDAY(s) DELEGATED(g) PROJ(p) PLANNED(l) | DONE(d) FORWARDED(f) CANCELLED(c) |
| OB | 2 | #+PRIORITIES: A D D |
| 3 | #+OPTIONS: H:1 author:nil toc:nil date:nil t:nil <:t e:t p:t num:nil | |
| 4 | #+TITLE: OpenShift Diagrams by Olaf Bohlen | |
| 5 | #+LaTeX_CLASS: article | |
| 6 | #+LaTeX_HEADER: \usepackage[ttscale=.875]{libertine} | |
| 7 | #+LaTeX_HEADER: \usepackage{sectsty} | |
| 8 | #+LaTeX_HEADER: \sectionfont{\normalfont\scshape} | |
| 9 | #+LaTeX_HEADER: \subsectionfont{\normalfont\itshape} | |
| 10 | #+LATEX_HEADER: \renewcommand\maketitle{} | |
| 11 | ||
| 12 | * Deployment on OpenShift with images | |
| 13 | ||
| 14 | #+BEGIN_SRC ditaa :file ocp-dep-image1.png :cmdline -r | |
| 15 | oc new-app sample.registry.org/user/image:tag | |
| 16 | | | |
| 17 | | | |
| 18 | | (1) +-------------+ points to +------------------------------------+ | |
| 19 | +---> | ImageStream | -----------> | external Registry cRED {s} | | |
| 20 | | | (IS) | | sample.registry.org/user/image:tag | | |
| 21 | | +-------------+ +------------------------------------+ | |
| 22 | | ^ | |
| 23 | | | points to | |
| 24 | | (2) +------------------+ (5) creates +-----------------------+ | |
| 25 | +---> | DeploymentConfig | --------------------------------> | ReplicationController | | |
| 26 | | | (DC) | (4) +-----------+ | (RC) | | |
| 27 | | | | ---------> | DeployPod | +-----------------------+ | |
| 28 | | +------------------+ creates +-----------+ | | |
| 29 | | | (6) creates |scales & | |
| 30 | | v |monitors | |
| 31 | | (3) +---------+ load balances +----------------+ | | |
| 32 | +---> | Service | --------------> | ApplicationPod | <-------------+ | |
| 33 | | (SVC) | | | | |
| 34 | +---------+ +----------------+ | |
| 35 | #+END_SRC | |
| 36 | ||
| 37 | #+results: | |
| 38 | [[file:ocp-dep-image1.png]] | |
| 39 | ||
| 40 | * Deployment on OpenShift with Source-to-Image (S2I) | |
| 41 | ||
| 42 | #+BEGIN_SRC ditaa :file ocp-dep-s2i1.png :cmdline -rE | |
| 43 | oc new-app http://git.repo-server.org/sampleapp | |
| 44 | | | |
| 45 | | | |
| 46 | | (1) +-------------+ points to +----------------------------+ +------------------------------------+ | |
| 47 | +---> | ImageStream | -----------> | internal Registry cBLU {s} | | external Registry cRED {s} | | |
| 48 | | | (IS) |<+ | sampleapp:latest | | sample.registry.org/ose/s2ibuilder | | |
| 49 | | +-------------+ | +----------------------------+ +------------------------------------+ | |
| 50 | | | ^ ^ | |
| 51 | | | | (9) docker commits | points to | |
| 52 | | | | | | |
| 53 | | (2) +-------------+ |(5) creates +--------------+ (6) docker run +-----------------+ | |
| 54 | +---> | BuildConfig | |-----------> | BuilderPod | ------------------> | S2I ImageStream | | |
| 55 | | | (BC) | | | (8) assemble | | (IS) | | |
| 56 | | +-------------+ | +--------------+ +-----------------+ | |
| 57 | | | | | (7) git clone ^ | |
| 58 | | +--=-----|----=-------------|---=----------------------------------+ | |
| 59 | | ImageChange | | | |
| 60 | | Trigger watches| v | |
| 61 | | S2I IS | +--------------------------------------+ | |
| 62 | | | | git Repository {s} | | |
| 63 | build | | | http://git.repo-server.org/sampleapp | | |
| 64 | step | : +--------------------------------------+ | |
| 65 | -=-----|-=--------------------|--=------------------------------------------------------------------------------------- | |
| 66 | deploy | |ImageChange | |
| 67 | step | |Trigger | |
| 68 | | |watches IS | |
| 69 | | (3) +------------------+ (11) creates +-----------------------+ | |
| 70 | +---> | DeploymentConfig | --------------------------------> | ReplicationController | | |
| 71 | | | (DC) | (10) +-----------+ | (RC) | | |
| 72 | | | | ---------> | DeployPod | +-----------------------+ | |
| 73 | | +------------------+ creates +-----------+ | | |
| 74 | | | (12) creates |scales & | |
| 75 | | v |monitors | |
| 76 | | (4) +---------+ load balances +----------------+ | | |
| 77 | +---> | Service | --------------> | ApplicationPod | <-------------+ | |
| 78 | | (SVC) | | | | |
| 79 | +---------+ +----------------+ | |
| 80 | #+END_SRC | |
| 81 | ||
| 82 | #+results: | |
| 83 | [[file:ocp-dep-s2i1.png]] | |
| 84 | ||
| 85 | * Input Detection OpenShift | |
| 86 | #+begin_src plantuml :file openshift-input-detection.png | |
| 87 | !pragma useVerticalIf on | |
| 88 | :oc new-app <input spec>; | |
| 89 | if (docker pull) then (yes) | |
| 90 | -> yes | |
| 91 | --docker-image= forces this; | |
| 92 | :docker run; | |
| 93 | note: --docker-image= forces this | |
| 94 | stop | |
| 95 | else (no) | |
| 96 | :try for an SCM code repo; | |
| 97 | note: --code forces this | |
| 98 | if (git clone) then (no) | |
| 99 | :abort with error; | |
| 100 | stop | |
| 101 | elseif (Dockerfile found?) then (yes) | |
| 102 | :docker build; | |
| 103 | note: --strategy=docker forces this | |
| 104 | :docker run; | |
| 105 | stop | |
| 106 | else (no) | |
| 107 | :continue with S2I; | |
| 108 | note right: --strategy=source forces this | |
| 109 | if (pom.xml found?) then (yes) | |
| 110 | :search for JEE S2I builder; | |
| 111 | note: use -i to suggest an S2I image stream (tag); | |
| 112 | :continue with S2I process; | |
| 113 | stop | |
| 114 | elseif (index.php found?) then (yes) | |
| 115 | :search for PHP S2I builder; | |
| 116 | note | |
| 117 | prefix the git url with builderis~ (tilda!) | |
| 118 | to turn off language detection and force this builder | |
| 119 | end note | |
| 120 | :continue with S2I process; | |
| 121 | stop | |
| 122 | else | |
| 123 | :abort with error; | |
| 124 | stop | |
| 125 | endif | |
| 126 | #+end_src | |
| 127 | ||
| 128 | #+results: | |
| 129 | [[file:openshift-input-detection.png]] | |
