You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
75 lines
2.2 KiB
Bash
75 lines
2.2 KiB
Bash
#!/usr/bin/env bash
|
|
# vim:ts=4:sts=4:sw=4:et
|
|
#
|
|
# Author: Hari Sekhon
|
|
# Date: 2021-04-16 17:44:30 +0100 (Fri, 16 Apr 2021)
|
|
#
|
|
# https://github.com/HariSekhon/bash-tools
|
|
#
|
|
# License: see accompanying Hari Sekhon LICENSE file
|
|
#
|
|
# If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
|
|
#
|
|
# https://www.linkedin.com/in/HariSekhon
|
|
#
|
|
|
|
set -euo pipefail
|
|
[ -n "${DEBUG:-}" ] && set -x
|
|
srcdir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
|
|
|
|
# shellcheck disable=SC1090
|
|
. "$srcdir/lib/utils.sh"
|
|
|
|
# shellcheck disable=SC2034,SC2154
|
|
usage_description="
|
|
Lists all Kubernetes nodes in a given GKE cluster's nodepool
|
|
|
|
- finds instance groups in a node pool
|
|
- finds nodes in each instance group
|
|
|
|
Requires:
|
|
|
|
- GCloud SDK to be installed and configured
|
|
- requires core/project and compute/region to be set in your gcloud config
|
|
or else environment variables CLOUDSDK_CORE_PROJECT and CLOUDSDK_COMPUTE_REGION
|
|
|
|
If gcloud config container/cluster or CLOUDSDK_CONTAINER_CLUSTER are set then you don't have to specify the cluster name
|
|
"
|
|
|
|
# used by usage() in lib/utils.sh
|
|
# shellcheck disable=SC2034
|
|
usage_args="[<cluster_name>] <node_pool_name>"
|
|
|
|
help_usage "$@"
|
|
|
|
min_args 1 "$@"
|
|
|
|
if [ $# -eq 2 ]; then
|
|
export GCLOUD_CONTAINER_CLUSTER="$1"
|
|
node_pool="$2"
|
|
elif [ $# -eq 1 ]; then
|
|
node_pool="$1"
|
|
else
|
|
usage
|
|
fi
|
|
|
|
if [ -n "${VERBOSE:-}" ]; then
|
|
timestamp "finding instance groups in node pool '$node_pool'"
|
|
fi
|
|
instance_groups="$(
|
|
gcloud container node-pools describe "$node_pool" --format=json |
|
|
jq -r '.instanceGroupUrls[] | sub("^.*/"; "")'
|
|
)"
|
|
|
|
if [ -n "${VERBOSE:-}" ]; then
|
|
echo >&2
|
|
fi
|
|
for instance_group in $instance_groups; do
|
|
if [ -n "${VERBOSE:-}" ]; then
|
|
#timestamp "finding zone of instance group '$instance_group'"
|
|
timestamp "finding nodes in instance group '$instance_group'"
|
|
fi
|
|
zone="$(gcloud compute instance-groups list --filter="name=$instance_group" --format='get(zone)' | sed 's|^.*/||')"
|
|
gcloud compute instance-groups list-instances "$instance_group" --zone "$zone" --format='value(NAME)' # doesn't find it without zone, and NAME must be capitalized too
|
|
done
|