functions for setting up osd clusters. Add this to your .bashrc/.zshrc

cluster.json

{
  "aws": {
    "access_key_id": "string",
    "account_id": "string",
    "secret_access_key": "string"
  },
  "ccs": {
    "enabled": true
  },
  "cloud_provider": {
    "id": "aws"
  },
  "managed": true,
  "multi_az": false,
  "name": "<cluster-name>",
  "region": {
    "id": "us-east-1"
  },
  "nodes" : {
    "compute_machine_type" : {"id" : "m5.2xlarge" }
  }
}

osd_util_functions

osd_is_cluster_ready()
{
  CLUSTER_NAME=$1
  if [ $# -eq 0 ]; then
    CLUSTER_NAME=$(jq .name $OSD_CLUSTER_CONFIG | tr -d '\"')
  fi

  until [[ $(ocm get /api/clusters_mgmt/v1/clusters | jq -r --arg CLUSTER_NAME "$CLUSTER_NAME" '.items[] | select(.name==$CLUSTER_NAME).state') = "ready" ]]; do
    STATE=$(ocm get /api/clusters_mgmt/v1/clusters | jq -r --arg CLUSTER_NAME "$CLUSTER_NAME" '.items[] | select(.name==$CLUSTER_NAME).state')
    echo "Cluster is not yet ready. STATE: $STATE"
    sleep 30
  done

  echo "Cluster '$CLUSTER_NAME' is ready"
}

osd_setup_credentials()
{
  CLUSTER_IDENTIFIER=$1
  if [ $# -eq 0 ]; then
    CLUSTER_NAME=$(jq .name $OSD_CLUSTER_CONFIG | tr -d '\"')
  fi

  CLUSTER_ID=$(ocm get clusters --parameter search="name='$CLUSTER_IDENTIFIER' OR id='$CLUSTER_IDENTIFIER'" | jq '.items[].id' | tr -d '\"')

  if [ -z "$CLUSTER_ID" ]; 
  then
    echo "Cluster ID not found for $CLUSTER_IDENTIFIER"
  else
    ocm get /api/clusters_mgmt/v1/clusters/$CLUSTER_ID/credentials | jq -r .kubeconfig > $KUBECONFIG
    echo "OSD config for $CLUSTER_IDENTIFIER has been set to $KUBECONFIG"
    osd_get_credentials $CLUSTER_IDENTIFIER
  fi  
}

osd_get_credentials()
{
  CLUSTER_IDENTIFIER=$1
  if [ $# -eq 0 ]; then
    CLUSTER_IDENTIFIER=$(jq .name $OSD_CLUSTER_CONFIG | tr -d '\"')
  fi

  echo "Getting kubeadmin credentials for $CLUSTER_IDENTIFIER"
  CLUSTER_ID=$(ocm get clusters --parameter search="name='$CLUSTER_IDENTIFIER' OR id='$CLUSTER_IDENTIFIER'" | jq '.items[].id' | tr -d '\"')
  if [ -z "$CLUSTER_ID" ]; 
  then
    echo "Cluster ID not found for $CLUSTER_IDENTIFIER"
  elif [[ $(ocm get /api/clusters_mgmt/v1/clusters/$CLUSTER_ID | jq '.state' | tr -d '\"') == "uninstalling" ]];
  then
    echo "Unable to get credentials, cluster is uninstalling"
  else
    until [[ $(ocm get /api/clusters_mgmt/v1/clusters | jq -r --arg CLUSTER_IDENTIFIER "$CLUSTER_IDENTIFIER" '.items[] | select(.name==$CLUSTER_IDENTIFIER).console.url' | tr -d '\"') != "null" ]]; do
      echo "Console url is not available, retrying..."
      sleep 5
    done
    CONSOLE=$(ocm get clusters --parameter search="name='$CLUSTER_IDENTIFIER' OR id='$CLUSTER_IDENTIFIER'" | jq '.items[].console.url' | tr -d '\"')
    echo "Console: $CONSOLE"

    ocm get /api/clusters_mgmt/v1/clusters/$CLUSTER_ID/credentials | jq '.admin'
  fi
}
osd_create()
{
  CLUSTER_NAME=$(jq .name $OSD_CLUSTER_CONFIG | tr -d '\"')
  echo "Checking if cluster already exists with the name '$CLUSTER_NAME'"
  NUM_CLUSTER_AVAILABLE=$(ocm get /api/clusters_mgmt/v1/clusters | jq -r --arg CLUSTER_NAME "$CLUSTER_NAME" '.items[] | select(.display_name==$CLUSTER_NAME).id' | wc -l)

  if [ $NUM_CLUSTER_AVAILABLE -eq 0 ]; then
    echo "Creating cluster '$CLUSTER_NAME'"
    ocm post /api/clusters_mgmt/v1/clusters --body=$OSD_CLUSTER_CONFIG
  else
    echo "Cluster '$CLUSTER_NAME' is already available, skipping create"
  fi
}

osd_setup()
{
  osd_create
  # End setup if cluster failed to create
  if [ $? -eq 1 ]; then
    return
  fi
  CLUSTER_NAME=$(jq .name $OSD_CLUSTER_CONFIG | tr -d '\"') # Get cluster name from json file
  osd_is_cluster_ready $CLUSTER_NAME
  osd_setup_credentials $CLUSTER_NAME
}

Prerequisites

• ocm cli
• Login to ocm

Usage

Export vars

The following env vars are required to be set by this script:

• export OSD_CLUSTER_CONFIG=<path-to-cluster.json>
• export KUBECONFIG=<path-to-your-kubeconfig-file>

osd_setup

This creates a cluster based on your cluster.json file and waits for it to be ready. It also sets the kubeconfig and outputs the console link and kubeadmin credentials as soon as the cluster is available

osd_setup

osd_create

This creates an OSD cluster with the config specified in cluster.json file.

osd_create

osd_is_cluster_ready

Checks if cluster is ready

osd_is_cluster_ready <cluster-name>

NOTE: If <cluster-name> is not specified, it will default to the cluster name specified in your cluster.json file.

osd_setup_credentials

IMPORTANT: Ensure that the cluster is ready first

This sets up the cluster config to your local KUBECONFIG file and returns the kubeadmin credentials

osd_setup_credentials <cluster-name> or <cluster-id>

NOTE: If <cluster-name> or <cluster-id> is not specified, it will default to the cluster name specified in your cluster.json file.

osd_get_credentials

IMPORTANT: Ensure that the cluster is ready first

This returns the console link and kubeadmin credentials

osd_get_credentials <cluster-name> or <cluster-id>

NOTE: If <cluster-name> or <cluster-id> is not specified, it will default to the cluster name specified in your cluster.json file.

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