From eda922f65d579926d6887444677109751c59809c Mon Sep 17 00:00:00 2001
From: Yuxiang Zhu <yuxzhu@redhat.com>
Date: Aug 24 2018 08:28:14 +0000
Subject: CI/CD: Add Makefile for updating CI/CD OpenShift Pipeline jobs


This Makefile is used to update the OpenShift manifests for all pipeline jobs with a single run.
Parameters of the templates are configured for the upstream WaiverDB
CI/CD workflow and service locations.

*NOTE: Secrets and images in your OpenShift project are *NOT* touched by this script. You have to manually
manage them.*

Log into your OpenShift project that is dedicated for CI/CD workloads.
You must have the admin access to the OpenShift project.
```bash
oc login <your-cluster>
oc project <your-project>
```

To install or update all CI/CD pipelines, just run
```bash
make install
```

To delete all manifests created by this script, run
```bash
make uninstall
```

More information can be found in `openshift/README.md`.

---

diff --git a/openshift/README.md b/openshift/README.md
index 2b275c0..cab6615 100644
--- a/openshift/README.md
+++ b/openshift/README.md
@@ -20,6 +20,22 @@ Before using the Pipeline, please ensure your Jenkins master has the following p
 Notes:
 [1]: Those plugins are preinstalled if you are using the Jenkins master shipped with OpenShift.
 
+### Batch Updating All Pipeline Jobs
+Running `make install` inside `openshift/pipelines` will perform batch updates on all jobs
+with parameters defined in `openshift/pipelines/jobs`.
+Logging into your OpenShift project is required before using the Makefile.
+Secrets and Images in your OpenShift project are *NOT* touched.
+
+All pipeline job definitions are in `./pipelines/jobs` while templates are in `./pipelines/templates`.
+For each pipeline job, there are 2 files in `openshift/pipelines/jobs`:
+`<job-name>.env` and `<job-name>.tmpl`. `<job-name>.env` gives all the parameters
+passing to the OpenShift template specified in `<job-name>.tmpl`.
+You can also specify an alternate directories for looking up job definitions and templates
+by using `JOBS_DIR` and `TEMPLATES_DIR` Makefile variables.
+For example, if you want to set up a stage version of pipeline jobs
+with experimental modifications to job definitions,
+you can run: `make install JOBS_DIR=stage-jobs`. For more information, run `make help`.
+
 ### Dev Pipeline
 Dev Pipeline is a part of the WaiverDB Pipeline, covers the following steps:
 
diff --git a/openshift/pipelines/Makefile b/openshift/pipelines/Makefile
new file mode 100644
index 0000000..993653c
--- /dev/null
+++ b/openshift/pipelines/Makefile
@@ -0,0 +1,38 @@
+OC:=oc
+OCFLAGS:=
+JOBS_DIR:=jobs
+TEMPLATES_DIR:=templates
+JOB_PARAM_FILES:=$(wildcard $(JOBS_DIR)/*.env)
+JOBS:=$(patsubst $(JOBS_DIR)/%.env,%,$(JOB_PARAM_FILES))
+
+OC_CMD=$(OC) $(OCFLAGS)
+
+help:
+	@echo TARGETS
+	@echo -e "\tinstall\t\tInstall or update pipelines to OpenShift"
+	@echo -e "\tuninstall\tDelete installed pipelines from OpenShift"
+	@echo
+	@echo VARIABLES
+	@echo -e "\tJOBS\t\tSpace seperated list of pipeline jobs to install"
+	@echo -e "\tJOBS_DIR\tLooking for pipeline job definitions in an alternate directory."
+	@echo -e "\tTEMPLATES_DIR\tLooking for pipeline job templates in an alternate directory."
+	@echo -e "\tOC\t\tUse this oc command"
+	@echo -e "\tOCFLAGS\t\tOptions to append to the oc command arguments"
+install:
+	@for job in $(JOBS); do \
+		echo "[PIPELINE] Updating pipeline job \"$${job}\"..." ; \
+	  template_file=$$(cat ./$(JOBS_DIR)/$${job}.tmpl); \
+		$(OC_CMD) process --local -f ./$(TEMPLATES_DIR)/$${template_file} \
+			--param-file ./$(JOBS_DIR)/$${job}.env | $(OC_CMD) apply -f -; \
+		echo "[PIPELINE] Pipeline job \"$${job}\" updated" ; \
+	done
+uninstall:
+	@for job in $(JOBS); do \
+	  template_file=$$(cat ./$(JOBS_DIR)/$${job}.tmpl); \
+		template_name=$${template_file%.y?ml}; \
+		template_name=$${template_name%-template}; \
+		echo "[PIPELINE] Deleting pipeline job \"$${job}\"..." ; \
+		$(OC_CMD) delete all -l template="$$template_name" -l app="$$job" ;\
+		echo "[PIPELINE] Pipeline job \"$${job}\" deleted" ; \
+	done
+.PHONY: help install uninstall