Features 11017 and 11018: setup of mgmt cluster and git repo

This change incorporates the changes to setup a mgmt cluster for
cloud-native operations in OSM following a GitOps model, which includes
the setup of an internal git repository.

Change-Id: If828d18ad64d852a9a89ec9ba7c2d3a96d281565
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>
diff --git a/installers/full_install_osm.sh b/installers/full_install_osm.sh
index ba692c1..1b18334 100755
--- a/installers/full_install_osm.sh
+++ b/installers/full_install_osm.sh
@@ -26,6 +26,12 @@
     echo -e "     -k <repo key>:  use specified repository public key url"
     echo -e "     -a <apt proxy url>: use this apt proxy url when downloading apt packages (air-gapped installation)"
     echo -e "     -c <kubernetes engine>: use a specific kubernetes engine (options: kubeadm, k3s), default is kubeadm"
+    echo -e "     -t <docker tag> specify osm docker tag (default is latest)"
+    echo -e "     -M <KUBECONFIG_FILE>: Kubeconfig of an existing cluster to be used as mgmt cluster instead of OSM cluster"
+    echo -e "     -G <KUBECONFIG_FILE>: Kubeconfig of an existing cluster to be used as auxiliary cluster instead of OSM cluster"
+    echo -e "     --no-mgmt-cluster: Do not provision a mgmt cluster for cloud-native gitops operations in OSM (NEW in Release SIXTEEN) (by default, it is installed)"
+    echo -e "     --no-aux-cluster: Do not provision an auxiliary cluster for cloud-native gitops operations in OSM (NEW in Release SIXTEEN) (by default, it is installed)"
+    echo -e "     -D <devops path>:   use local devops installation path"
     echo -e "     -s <namespace>  namespace when installed using k8s, default is osm"
     echo -e "     -H <VCA host>   use specific juju host controller IP"
     echo -e "     -S <VCA secret> use VCA/juju secret key"
@@ -35,13 +41,11 @@
     echo -e "     --old-sa:       install old Service Assurance framework (MON, POL); do not install Airflow and Pushgateway"
     echo -e "     --ng-sa:        install new Service Assurance framework (Airflow, AlertManager and Pushgateway) (enabled by default)"
     echo -e "     -o <COMPONENT>: ONLY installs the specified component (k8s_monitor, ng-sa, k8scluster, docker, deploy-osm)"
-    echo -e "     -O <openrc file path/cloud name>: Install OSM to an OpenStack infrastructure. <openrc file/cloud name> is required. If a <cloud name> is used, the clouds.yaml file should be under ~/.config/openstack/ or /etc/openstack/"
-    echo -e "     -N <openstack public network name/ID>: Public network name required to setup OSM to OpenStack"
-    echo -e "     -f <path to SSH public key>: Public SSH key to use to deploy OSM to OpenStack"
-    echo -e "     -F <path to cloud-init file>: Cloud-Init userdata file to deploy OSM to OpenStack"
-    echo -e "     -D <devops path> use local devops installation path"
-    echo -e "     -w <work dir>   Location to store runtime installation"
-    echo -e "     -t <docker tag> specify osm docker tag (default is latest)"
+    echo -e "     -O <openrc file path/cloud name>: install OSM to an OpenStack infrastructure. <openrc file/cloud name> is required. If a <cloud name> is used, the clouds.yaml file should be under ~/.config/openstack/ or /etc/openstack/"
+    echo -e "     -N <openstack public network name/ID>: public network name required to setup OSM to OpenStack"
+    echo -e "     -f <path to SSH public key>: public SSH key to use to deploy OSM to OpenStack"
+    echo -e "     -F <path to cloud-init file>: cloud-init userdata file to deploy OSM to OpenStack"
+    echo -e "     -w <work dir>:   Location to store runtime installation"
     echo -e "     -l:             LXD cloud yaml file"
     echo -e "     -L:             LXD credentials yaml file"
     echo -e "     -K:             Specifies the name of the controller to use - The controller must be already bootstrapped"
@@ -222,6 +226,7 @@
     OSM_HELM_OPTS="${OSM_HELM_OPTS} --set grafana.ingress.hosts={grafana.${OSM_DEFAULT_IP}.nip.io}"
     OSM_HELM_OPTS="${OSM_HELM_OPTS} --set prometheus.server.ingress.hosts={prometheus.${OSM_DEFAULT_IP}.nip.io}"
     # OSM_HELM_OPTS="${OSM_HELM_OPTS} --set prometheus.alertmanager.ingress.hosts={alertmanager.${OSM_DEFAULT_IP}.nip.io}"
+    [ -z "${INSTALL_MGMT_CLUSTER}" ] && OSM_HELM_OPTS="${OSM_HELM_OPTS} --set global.gitops.enabled=false}"
 
     if [ -n "${INSTALL_JUJU}" ]; then
         OSM_HELM_OPTS="${OSM_HELM_OPTS} --set vca.enabled=true"
@@ -497,14 +502,18 @@
     fi
     track docker_ce docker_ce_ok
 
+    echo "Installing helm client ..."
     $OSM_DEVOPS/installers/install_helm_client.sh -D ${OSM_DEVOPS} ${DEBUG_INSTALL} || \
     FATAL_TRACK k8scluster "install_helm_client.sh failed"
     track helm_client install_helm_client_ok
 
+    echo "Installing K8s cluster ..."
     install_k8s_cluster
+    kubectl create namespace ${OSM_NAMESPACE}
     track k8scluster k8scluster_ok
 
     if [ -n "${INSTALL_JUJU}" ]; then
+        echo "Installing Juju ..."
         JUJU_OPTS="-D ${OSM_DEVOPS} -s ${OSM_NAMESPACE} -i ${OSM_DEFAULT_IP} ${DEBUG_INSTALL} ${INSTALL_CACHELXDIMAGES}"
         [ -n "${OSM_VCA_HOST}" ] && JUJU_OPTS="$JUJU_OPTS -H ${OSM_VCA_HOST}"
         [ -n "${LXD_CLOUD_FILE}" ] && JUJU_OPTS="$JUJU_OPTS -l ${LXD_CLOUD_FILE}"
@@ -519,7 +528,22 @@
     # This track is maintained for backwards compatibility
     track docker_images docker_images_ok
 
+    # Install mgmt cluster
+    echo "Installing mgmt cluster ..."
+    MGMTCLUSTER_INSTALL_OPTS="-D ${OSM_DEVOPS} ${DEBUG_INSTALL}"
+    [ -n "${INSTALL_MGMT_CLUSTER}" ] || MGMTCLUSTER_INSTALL_OPTS="${MGMTCLUSTER_INSTALL_OPTS} --no-mgmt-cluster"
+    [ -n "${INSTALL_AUX_CLUSTER}" ] || MGMTCLUSTER_INSTALL_OPTS="${MGMTCLUSTER_INSTALL_OPTS} --no-aux-cluster"
+    export KUBECONFIG_MGMT_CLUSTER=${KUBECONFIG_MGMT_CLUSTER:-"$HOME/.kube/config"}
+    export KUBECONFIG_AUX_CLUSTER=${KUBECONFIG_AUX_CLUSTER:-"$HOME/.kube/config"}
+    MGMTCLUSTER_INSTALL_OPTS="${MGMTCLUSTER_INSTALL_OPTS} -M ${KUBECONFIG_MGMT_CLUSTER}"
+    MGMTCLUSTER_INSTALL_OPTS="${MGMTCLUSTER_INSTALL_OPTS} -G ${KUBECONFIG_AUX_CLUSTER}"
+    echo "Options: ${MGMTCLUSTER_INSTALL_OPTS}"
+    $OSM_DEVOPS/installers/mgmt-cluster/install_mgmt_cluster.sh ${MGMTCLUSTER_INSTALL_OPTS} || \
+    FATAL_TRACK mgmtcluster "install_mgmt_cluster.sh failed"
+    track mgmtcluster mgmt_and_aux_cluster_ok
+
     # Deploy OSM (mongodb, OSM helm chart, NGSA)
+    echo "Deploying OSM in the K8s cluster ..."
     deploy_osm
 
     if [ -n "$INSTALL_K8S_MONITOR" ]; then
@@ -528,7 +552,7 @@
         track deploy_osm install_k8s_monitoring_ok
     fi
 
-    [ -z "$INSTALL_NOHOSTCLIENT" ] && install_osmclient
+    [ -z "$INSTALL_NOHOSTCLIENT" ] && echo "Installing osmclient ..." && install_osmclient
     track osmclient osmclient_ok
 
     echo -e "Checking OSM health state..."
@@ -538,6 +562,7 @@
     track healthchecks osm_unhealthy didnotconverge)
     track healthchecks after_healthcheck_ok
 
+    echo -e "Adding local K8s cluster _system-osm-k8s to OSM ..."
     add_local_k8scluster
     track final_ops add_local_k8scluster_ok
 
@@ -643,7 +668,6 @@
     echo "INSTALL_PLA=$INSTALL_PLA"
     echo "INSTALL_TO_OPENSTACK=$INSTALL_TO_OPENSTACK"
     echo "INSTALL_VIMEMU=$INSTALL_VIMEMU"
-    echo "NO_HOST_PORTS=$NO_HOST_PORTS"
     echo "OPENSTACK_PUBLIC_NET_NAME=$OPENSTACK_PUBLIC_NET_NAME"
     echo "OPENSTACK_OPENRC_FILE_OR_CLOUD=$OPENSTACK_OPENRC_FILE_OR_CLOUD"
     echo "OPENSTACK_ATTACH_VOLUME=$OPENSTACK_ATTACH_VOLUME"
@@ -721,6 +745,8 @@
 INSTALL_JUJU=""
 INSTALL_NOHOSTCLIENT=""
 INSTALL_CACHELXDIMAGES=""
+INSTALL_AUX_CLUSTER="y"
+INSTALL_MGMT_CLUSTER="y"
 OSM_DEVOPS=
 OSM_VCA_HOST=
 OSM_VCA_SECRET=
@@ -728,7 +754,6 @@
 OSM_VCA_CLOUDNAME="localhost"
 OSM_VCA_K8S_CLOUDNAME="k8scloud"
 OSM_NAMESPACE=osm
-NO_HOST_PORTS=""
 REPOSITORY_KEY="OSM%20ETSI%20Release%20Key.gpg"
 REPOSITORY_BASE="https://osm-download.etsi.org/repository/osm/debian"
 OSM_WORK_DIR="/etc/osm"
@@ -756,7 +781,7 @@
 MODULE_DOCKER_TAG=
 OSM_INSTALLATION_TYPE="Default"
 
-while getopts ":a:c:r:n:k:u:R:D:o:O:N:H:S:s:t:U:P:A:l:L:K:d:p:T:f:F:-: hy" o; do
+while getopts ":a:c:r:n:k:u:R:D:o:O:N:H:S:s:t:U:P:A:l:L:K:d:p:T:f:F:G:M:-: hy" o; do
     case "${o}" in
         a)
             APT_PROXY_URL=${OPTARG}
@@ -853,10 +878,18 @@
         T)
             MODULE_DOCKER_TAG="${OPTARG}"
             ;;
+        M)
+            KUBECONFIG_MGMT_CLUSTER="${OPTARG}"
+            ;;
+        G)
+            KUBECONFIG_AUX_CLUSTER="${OPTARG}"
+            ;;
         -)
             [ "${OPTARG}" == "help" ] && usage && exit 0
             [ "${OPTARG}" == "debug" ] && DEBUG_INSTALL="--debug" && continue
             [ "${OPTARG}" == "uninstall" ] && UNINSTALL="y" && continue
+            [ "${OPTARG}" == "no-mgmt-cluster" ] && INSTALL_MGMT_CLUSTER="" && continue
+            [ "${OPTARG}" == "no-aux-cluster" ] && INSTALL_AUX_CLUSTER="" && continue
             [ "${OPTARG}" == "update" ] && UPDATE="y" && continue
             [ "${OPTARG}" == "reconfigure" ] && RECONFIGURE="y" && continue
             [ "${OPTARG}" == "test" ] && TEST_INSTALLER="y" && continue
@@ -866,7 +899,6 @@
             [ "${OPTARG}" == "docker" ] && INSTALL_DOCKER="y" && continue
             [ "${OPTARG}" == "nodocker" ] && INSTALL_DOCKER="" && continue
             [ "${OPTARG}" == "showopts" ] && SHOWOPTS="y" && continue
-            [ "${OPTARG}" == "nohostports" ] && NO_HOST_PORTS="y" && continue
             [ "${OPTARG}" == "juju" ] && INSTALL_JUJU="y" && continue
             [ "${OPTARG}" == "nojuju" ] && INSTALL_JUJU="" && continue
             [ "${OPTARG}" == "nohostclient" ] && INSTALL_NOHOSTCLIENT="y" && continue