Makefile

DATE      	:= 	$(shell date)

# The "?=" in this command assigns "acceptance" only when "ENVIRONMENT" has not
# already been set on the commandline or environment variables. Jenkins will have
# this set to "production" so it will use production values.
ENVIRONMENT	?= acc

NAMESPACE       ?= k8snamespace
.ONESHELL:
.PHONY: secrets status namespace configmap service deploy autoscale delete syncelasticsearch

.DEFAULT_GOAL := deploy

## This function is here to find the version / color of kubernetes cluster
## we currently use. The api.live..... dns name is manually changed to point to
## the correct kubernetes cluster.
## And it loads the environment variables for the current deploy
define context
. ./env/$(1).env;

## This command does a dns lookup to see which context is the current live kubernetes network
## And then exports a variable that is filled with the context name.
export CONTEXT=$(shell host api.live.$(1).k8s.domain | head -n1 | awk -F'.' '{print $$7"."$$8"."$$9"."$$10"."$$11}')
export DOCKER_TAG=$(shell curl --silent http://jenkinslink:8080/job/Elect%20Build/lastSuccessfulBuild/api/json | jq '.number')
endef

reset: delete deploy

changedefaultcontext:
				@echo "## Status"
				$(call context,${ENVIRONMENT})
				kubectl config set-context $$CONTEXT
				kubectl config use-context $$CONTEXT
				echo "----"

status:
				@echo "## Status"
				$(call context,${ENVIRONMENT})
				kubectl --context=$$CONTEXT --namespace ${NAMESPACE} get deployment
				kubectl --context=$$CONTEXT --namespace ${NAMESPACE} get services -o wide
				kubectl --context=$$CONTEXT --namespace=${NAMESPACE} rollout status deployment/nginx
				kubectl --context=$$CONTEXT --namespace=${NAMESPACE} rollout status deployment/php-fpm
				echo "----"

secrets:
				@echo "## Creating the Secrets"
				$(call context,${ENVIRONMENT})

				kubectl --namespace ${NAMESPACE} \
					create secret generic env-symfony \
					--dry-run \
					-o yaml \
					--from-file=configmaps/${ENVIRONMENT}/env/ | \
					kubectl --namespace ${NAMESPACE} --context=$$CONTEXT apply -f -

				echo "----"

namespace:
				@echo "## Naming the namespace"
				$(call context,${ENVIRONMENT})
				envsubst < ./namespace.yml | kubectl --context=$$CONTEXT apply -f -
				echo "----"

cronjobs:
				@echo "## Creating the cronjobs"
				$(call context,${ENVIRONMENT})
				envsubst < ./cron-saved-searches.yml | kubectl --context=$$CONTEXT apply -f -
				envsubst < ./cron-flirtmails.yml | kubectl --context=$$CONTEXT apply -f -
				echo "----"

dbmigrate:
				@echo "## Migrating the unmigrated database"
				$(call context,${ENVIRONMENT})
				kubectl delete --context=$$CONTEXT --namespace=${NAMESPACE} job dbmigrate || true
				envsubst < ./job-dbmigrate.yml | kubectl --context=$$CONTEXT apply -f -
				echo "----"

syncelasticsearch:
				@echo "## Syncing the ElasticSearches"
				$(call context,${ENVIRONMENT})
				kubectl delete --context=$$CONTEXT --namespace=${NAMESPACE} job synces || true
				envsubst < ./job-synces.yml | kubectl --context=$$CONTEXT apply -f -
				echo "----"

configmap:
				@echo "## Configuring the configmap(s)"
				$(call context,${ENVIRONMENT})

				kubectl --namespace ${NAMESPACE} \
					create configmap nginx \
					--dry-run \
					-o yaml \
					--from-file=configmaps/${ENVIRONMENT}/nginx | \
					kubectl --namespace ${NAMESPACE} --context=$$CONTEXT apply -f -

				kubectl --namespace ${NAMESPACE} \
					create configmap php-fpm \
					--dry-run \
					-o yaml \
					--from-file=configmaps/${ENVIRONMENT}/fpm | \
					kubectl --namespace ${NAMESPACE} --context=$$CONTEXT apply -f -

				echo "----"

reload: changedefaultcontext configmap secrets
				@echo "## Reloading to load the new load(s)"
				$(call context,${ENVIRONMENT})
				kubectl --namespace ${NAMESPACE} \
				patch deployment nginx \
				--context=$$CONTEXT \
				-p "{\"spec\":{\"template\":{\"metadata\":{\"labels\":{\"date\":\"`date +'%s'`\"}}}}}"

				kubectl --namespace ${NAMESPACE} \
				patch deployment php-fpm \
				--context=$$CONTEXT \
				-p "{\"spec\":{\"template\":{\"metadata\":{\"labels\":{\"date\":\"`date +'%s'`\"}}}}}"

service:
				@echo "## Servicing the service(s)"
				$(call context,${ENVIRONMENT})
				envsubst < ./service.yml | kubectl --context=$$CONTEXT apply -f -
				echo "----"

deploy: changedefaultcontext namespace secrets configmap service autoscale cronjobs dbmigrate
				@echo "## Deploying the deploy(s)"
				$(call context,${ENVIRONMENT})
				envsubst < ./deploy-fpm.yml 				| kubectl --context=$$CONTEXT apply -f -
				envsubst < ./deploy-nginx.yml 				| kubectl --context=$$CONTEXT apply -f -
				echo "----"

autoscale: deploy
				@echo "## Scaling the Autoscaler(s)"
				$(call context,${ENVIRONMENT})
				envsubst < ./hpa.yml | kubectl --context=$$CONTEXT apply -f -
				echo "----"

# Not used much, but it could be handy to sometimes completely eradicate the important bits
# and start over.
delete:
				@echo "## Deleting all the things"
				$(call context,${ENVIRONMENT})
				kubectl --namespace ${NAMESPACE} --context=$$CONTEXT delete cronjob savedsearches-mail  || echo "already deleted" && true
				kubectl --namespace ${NAMESPACE} --context=$$CONTEXT delete cronjob flirtmails		|| echo "already deleted" && true
				kubectl --namespace ${NAMESPACE} --context=$$CONTEXT delete deployment nginx 		|| echo "already deleted" && true
				kubectl --namespace ${NAMESPACE} --context=$$CONTEXT delete deployment php-fpm 		|| echo "already deleted" && true
				kubectl --namespace ${NAMESPACE} --context=$$CONTEXT delete configmap nginx 		|| echo "already deleted" && true
				kubectl --namespace ${NAMESPACE} --context=$$CONTEXT delete configmap php-fpm		|| echo "already deleted" && true
				kubectl --namespace ${NAMESPACE} --context=$$CONTEXT delete secret env-symfony 		|| echo "already deleted" && true
				kubectl --namespace ${NAMESPACE} --context=$$CONTEXT delete hpa nginx 			|| echo "already deleted" && true
				kubectl --namespace ${NAMESPACE} --context=$$CONTEXT delete hpa php-fpm			|| echo "already deleted" && true
				@echo "----"

release:
				@echo "## Enter commit message:"
				$(call context,${ENVIRONMENT})
				@read REPLY; \
				echo "${DATE} - $$REPLY" >> CHANGELOG; \
				git add --all; \
				git commit -m "$$REPLY"; \
				git pull
				git push