OpenShift heketi-cli helper

README.md

OpenShift heketi-cli helper

Purpose

To control OCS from inside of heketi-storage container running in an OpenShift cluster.

Prerequisites

• OCP deployed
• OCS deployed on top of it (converged or independent mode) ideally using the official playbooks
• kube config in the path with an admin user for glusterfs project
• oc client binary on the host and in the PATH

Howto

# # make sure oc knows where the kube config is
# export KUBECONFIG=$(pwd)/admin.kubeconfig
# osheketi-cli --help
# osheketi-cli topology info

osheketi-cli

#!/usr/bin/env bash

set -euo pipefail
IFS=$'\n\t'

namespaces=( default glusterfs storage )

function get_heketi_namespace() {
    local n
    for n in "${namespaces[@]}"; do
        if oc get -n "$n" svc/heketi-storage >/dev/null 2>&1; then
            echo "$n"
            return 0
        fi
    done
    return 1
}

function get_heketi_pod() {
    # TODO: choose ready pod
    oc get -n "${nm}" pod -l 'deploymentconfig==heketi-storage' -o name | head -n 1 | \
        sed 's,^pods\?/,,'
}

function die() {
    echo "$1" >&2
    exit 1
}

nm="$(get_heketi_namespace)"
[[ -z "${nm:-}" ]] && die "Failed to find heketi namespace!"

token="$(oc get -n "$nm" secret heketi-storage-admin-secret -o jsonpath='{.data.key}' | base64 -d)"
[[ -z "${token:-}" ]] && die "Failed to get token for heketi's admin!"

hcmd=( heketi-cli --server http://localhost:8080 --user admin --secret "${token}" )

oc exec -n "${nm}" -t "$(get_heketi_pod)" -- "${hcmd[@]}" "$@"