Fixed issue-1176: Reduce resource requests while installing minio

- Added configurable persistence size option in minio.sh, defaults
to 2Gi
- Set resources.requests.memory to 2Gi
- Updated usage message

Signed-off-by: Pratik Shah <pratik@infracloud.io>

Makefile

@@ -44,6 +44,10 @@ vm-driver ?= "kvm"
 
 # Default OCP version in which the OpenShift apps are going to run
 ocp_version ?= "4.11"
+
+# PVC size to use while installing minio
+pvc_size ?= "2Gi"
+
 ###
 ### These variables should not need tweaking.
 ###
@@ -271,7 +275,7 @@ tiller:
 	@/bin/bash ./build/init_tiller.sh
 
 install-minio:
-	@$(MAKE) run CMD='-c "./build/minio.sh install_minio"'
+	@$(MAKE) run CMD='-c "./build/minio.sh install_minio $(pvc_size)"'
 
 install-csi-hostpath-driver:
 	@$(MAKE) run CMD='-c "./build/local_kubernetes.sh install_csi_hostpath_driver"'

build/minio.sh

@@ -23,6 +23,7 @@ MINIO_CHART_VERSION="8.0.0"
 
 install_minio ()
 {
+    local pvc_size=${2:-"2Gi"}
     echo "Deploying minio..."
     # Add minio helm repo
     helm repo add minio https://helm.min.io/
@@ -37,6 +38,7 @@ install_minio ()
     --set environment.MINIO_SSE_AUTO_ENCRYPTION=on \
     --set environment.MINIO_SSE_MASTER_KEY=my-minio-key:feb5bb6c5cf851e21dbc0376ca81012a9edc4ca0ceeb9df5064ccba2991ae9de \
     --set accessKey="AKIAIOSFODNN7EXAMPLE",secretKey="wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY" \
+    --set resources.requests.memory=2Gi,persistence.size=${pvc_size} \
     minio/minio --wait --timeout 3m
 
     # export default creds for minio
@@ -60,10 +62,16 @@ uninstall_minio ()
 
 usage() {
     cat <<EOM
-Usage: ${0} <operation>
-Where operation is one of the following:
-  install_minio: installs minio on k8s cluster
-  uninstall_minio: uninstalls minio
+Usage:
+    ${0} install_minio [<pvc_size>]
+    ${0} uninstall_minio
+
+Optional arguments:
+    pvc_size: Specify persistence size to helm chart. Defaults to 2Gi
+
+Commands:
+  install_minio:   installs minio on k8s cluster
+  uninstall_minio: uninstalls minio from k8s cluster
 EOM
     exit 1
 }
@@ -72,7 +80,7 @@ EOM
 case "${1}" in
         # Alphabetically sorted
         install_minio)
-            time -p install_minio
+            time -p install_minio ${@}
             ;;
         uninstall_minio)
             time -p uninstall_minio