demo-quote-gen

This is a simple Quote Generator that returns famous quotes from either a sqlite database, postgresql database or mysql (mariadb) database

For example:

{
 "backend":"list",
 "quotes": {
    "name":"Benjamin Franklin",
    "quote":"Tell me and I forget.  Teach me and I remember.  Involve me and I learn."
}}

CodeReady Workspaces

Pipelines (Tekton)

There are two Tekton pipelines offered by this applicaiton. One, which utilises a shared workspace and one that doesn't. This demonstrates both the benefit containers can provide to testing and the speed benefits of using workspaces.

Pipelines with Workspaces and Caching

The pipeline below only clones the repo once and pypi modules oncce. This is then used throughout the test and build processes to speed up deployments. The pipeline run 25% quicker than the non-caching version.

Install the pipelines with workspaces:

export PROJECT=<namespace>
oc apply -f ./oc_templates/pipeline-ws

Pipelines with no caching

The pipeline below needs to clone and download the pypi modules 3 times, once for each pytest and again for the build.

Install the pipelines without workspaces:

export PROJECT=<namespace>
oc apply -f ./oc_templates/pipeline-no-ws

create postgres database

export POSTGRESQL_DATABASE="quotes"
export POSTGRESQL_USER="user"
export POSTGRESQL_PASSWORD="`head /dev/urandom | base64 | head -c 13 ; echo ''`"

oc apply -f ./oc_templates/quotegen/secret_postgresql.yaml
oc apply -f ./oc_templates/quotegen/dc_postgresql.yaml
oc apply -f ./oc_templates/quotegen/svc_postgresql.yaml

create application with postgres backend

export external_imape_base_url="<url>"
oc apply -f ./oc_templates/quotegen/is_quotegen.yaml
oc apply -f ./oc_templates/quotegen/svc_quotegen.yaml
oc apply -f ./oc_templates/quotegen/dc_quotegen_db.yaml
oc apply -f ./oc_templates/quotegen/cfgmap-quotegen.yaml

oc expose svc/quotegen

How to configure Kubernetes to load balancing for A/B testing

oc apply -f ./oc_templates/quotegen/is_quotegen.yaml
oc create -f ./oc_templates/quotegen/build_quotegen.yml

oc new-app quotegen:v1 --name=ab-v1 -e APP_HOME=quotegen --allow-missing-imagestream-tags=true
oc new-app quotegen:v2 --name=ab-v2 -e APP_HOME=quotegen -e QUOTE_BACKEND=DB --allow-missing-imagestream-tags=true

oc create -f svc_ab.yml
oc create -f route_quote.yml

kirikae/demo-quote-gen