Fixes minio addon

Minio removed the kubectl krew plugin in 5.0.15, which means that the
current workflow for installing the minio addon is outdated and will not
work for newer releases.

Updates the minio addon installation to use Helm instead, and brings it
up to date.

(cherry picked from commit 1a6aa1b)

addons/minio/disable

@@ -1,10 +1,9 @@
 #!/bin/bash -ex
 
 echo "Cleaning up MinIO tenants and operator"
-"${SNAP}/usr/bin/yes" | "${SNAP_COMMON}/plugins/kubectl-minio" delete
 
-echo "Remove kubectl-minio"
-rm "${SNAP_COMMON}/plugins/kubectl-minio"
-rm "${SNAP_COMMON}/plugins/.kubectl-minio"
+HELM="$SNAP/microk8s-helm3.wrapper"
+NAMESPACE="minio-operator"
+$HELM list -n $NAMESPACE --short | xargs $HELM uninstall -n $NAMESPACE
 
 echo "Disabled minio addon."

addons/minio/enable

@@ -11,14 +11,15 @@ CAPACITY="20Gi"
 SERVERS=1
 VOLUMES=1
 TENANT="microk8s"
-VERSION="4.5.1"
+VERSION="v6.0.2"
 TLS="no"
 PROMETHEUS="no"
-REPO="https://github.com/minio/operator"
+REPO="https://operator.min.io"
 
 # Enable dependenciess
 MICROK8S_ENABLE="${SNAP}/microk8s-enable.wrapper"
 "${MICROK8S_ENABLE}" dns
+"${MICROK8S_ENABLE}" helm3
 "${MICROK8S_ENABLE}" hostpath-storage
 
 function usage {
@@ -29,13 +30,13 @@ function usage {
   echo "   -h               Print this help message"
   echo "   -k               Do not create default tenant"
   echo "   -s STORAGECLASS  Storage class to use for the default tenant (default: ${STORAGE_CLASS})"
-  echo "   -c CAPACITY      Capacity of the default tenant (default: ${CAPACITY})"
-  echo "   -n SERVERS       Servers of the default tenant (default: ${SERVERS})"
-  echo "   -v VOLUMES       Volumes of the default tenant (default: ${VOLUMES})"
+  echo "   -c CAPACITY      Capacity of each volume for the default tenant (default: ${CAPACITY})"
+  echo "   -n SERVERS       Number of servers of the default tenant (default: ${SERVERS})"
+  echo "   -v VOLUMES       Number of volumes for each server of the default tenant (default: ${VOLUMES})"
   echo "   -t TENANTNAME    Name of the default tenant (default: ${TENANT})"
   echo "   -T               Enable TLS for the default tenant (default: disabled)"
   echo "   -p               Enable Prometheus for the default tenant (default: disabled)"
-  echo "   -r REPOSITORY    Minio Operator GitHub repository (default: ${REPO})"
+  echo "   -r REPOSITORY    Minio Operator Helm chart repository (default: ${REPO})"
   echo "   -V VERSION       Minio Operator version (default: ${VERSION})"
 }
 
@@ -68,25 +69,12 @@ while getopts ":hkTps:c:n:v:t:r:V:" arg; do
   esac
 done
 
-echo "Download kubectl-minio"
+HELM="$SNAP/microk8s-helm3.wrapper"
 
-if [ ! -f "${SNAP_COMMON}/plugins/kubectl-minio" ]; then
-  fetch_as "${REPO}/releases/download/v${VERSION}/kubectl-minio_${VERSION}_linux_${ARCH}" "${SNAP_COMMON}/plugins/.kubectl-minio"
-  run_with_sudo chmod +x "${SNAP_COMMON}/plugins/.kubectl-minio"
-  cp "${DIR}/kubectl-minio" "${SNAP_COMMON}/plugins/kubectl-minio"
-fi
-
-# Ensure kubectl exists in PATH
-mkdir -p "${SNAP_COMMON}/plugins/.kubectl"
-ln -f -s "${SNAP}/microk8s-kubectl.wrapper" "${SNAP_COMMON}/plugins/.kubectl/kubectl"
-
-if ! "${SNAP_COMMON}/plugins/kubectl-minio" version > /dev/null; then
-  echo "Could not execute kubectl-minio"
-  exit 1
-fi
-
-echo "Initialize minio operator"
-"${SNAP_COMMON}/plugins/kubectl-minio" init
+echo "Installing minio operator"
+$HELM upgrade --install minio-operator operator \
+  --repo $REPO --version "${VERSION}" \
+  --create-namespace --namespace "minio-operator"
 
 if [ "x${CREATE_TENANT}" = "xyes" ]; then
   echo "Create default tenant with:"
@@ -100,26 +88,27 @@ if [ "x${CREATE_TENANT}" = "xyes" ]; then
   echo "  Prometheus: ${PROMETHEUS}"
   echo ""
 
-  declare -a ARGS=(
-    "${TENANT}"
-    --storage-class "${STORAGE_CLASS}"
-    --capacity "${CAPACITY}"
-    --servers "${SERVERS}"
-    --volumes "${VOLUMES}"
-    --namespace "minio-operator"
-    --enable-audit-logs="false"
-  )
+  HELM_OPTS=
 
   if [ "x${TLS}" = "xno" ]; then
-    ARGS+=("--disable-tls")
+    HELM_OPTS+="--set tenant.certificate.requestAutoCert=false "
   fi
 
-  if [ "x${PROMETHEUS}" = "xno" ]; then
-    ARGS+=("--enable-prometheus=false")
+  if [ "x${PROMETHEUS}" != "xno" ]; then
+    HELM_OPTS+="--set tenant.prometheusOperator=true "
   fi
 
   set -x
-  "${SNAP_COMMON}/plugins/kubectl-minio" tenant create ${ARGS[@]}
+  $HELM upgrade --install "${TENANT}" tenant \
+    --repo $REPO --version "${VERSION}" \
+    --namespace "minio-operator" \
+    --set "tenant.name=${TENANT}" \
+    --set "tenant.pools[0].name=${TENANT}" \
+    --set "tenant.pools[0].storageClassName=${STORAGE_CLASS}" \
+    --set "tenant.pools[0].size=${CAPACITY}" \
+    --set "tenant.pools[0].servers=${SERVERS}" \
+    --set "tenant.pools[0].volumesPerServer=${VOLUMES}" \
+    ${HELM_OPTS}
   set +x
 fi