dotfiles/home/.bin/gs-ssh
Marcus Noble 2d78ed73c9
Added gs-ssh
Signed-off-by: Marcus Noble <github@marcusnoble.co.uk>
2024-08-30 13:42:25 +01:00

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#!/usr/bin/env bash
source .utils
DEBUG=""
print_usage() {
orange "gs-ssh - ssh to Giant Swarm managed cluster node"
echo " "
underline "Usage:"
echo "gs-ssh [CLUSTER NAME] [NODE NAME]"
echo " "
underline "Examples:"
echo "> gs-ssh gauss"
echo "> gs-ssh gauss ip-1-2-3-4.ey-west-1.compute.internal"
echo " "
underline "Options:"
echo "-h, --help show this help text"
}
POS_ARGS=()
while test $# -gt 0; do
case "$1" in
-h|--help)
print_usage
exit 0
;;
--debug)
DEBUG="--level=debug"
shift
;;
/)
# We want to ignore slash seperators between MC and WC
shift
;;
*)
POS_ARGS+=(`echo $1 | tr '/' ' '`)
shift
;;
esac
done
if [ ${#POS_ARGS[@]} -eq 0 ]; then
POS_ARGS+=(`opsctl list installations --short | tr ' ' '\n' | fzf`)
fi
TELEPORT_CLUSTER_NAME="$(echo "${POS_ARGS[0]}" | tr ' ' '-')"
TELEPORT_SUPPORTED=$(tsh kube ls -f json --query "name == \"${TELEPORT_CLUSTER_NAME}\"" 2>/dev/null | jq '. | length')
if [ ${#POS_ARGS[@]} -eq 1 ]; then
if [[ "${TELEPORT_SUPPORTED}" == "0" ]]; then
orange "Node name must be specified if cluster doesn't support Teleport"
exit 1
else
POS_ARGS+=(`tsh ls -f names cluster=${POS_ARGS[0]} | fzf`)
fi
fi
kubectl config delete-context gs-${POS_ARGS[0]} &>/dev/null
if [[ "${TELEPORT_SUPPORTED}" == "0" ]]; then
# Teleport not supported, old style login
echo "Cluster isn't know to Teleport, using old ssh method"
opsctl ssh ${DEBUG} ${POS_ARGS[@]}
else
echo "SSHing with Teleport. Cluster: '${TELEPORT_CLUSTER_NAME}' Node: ${POS_ARGS[1]}"
# Make sure that caching is disabled to avoid issues with cross-cluster cache pollution
TELEPORT_CACHE_DIR="${HOME}/.kube/cache/discovery/teleport.giantswarm.io_443"
if [[ "$(readlink -f ${TELEPORT_CACHE_DIR})" != "/dev/null" ]]; then
rm -rf ${TELEPORT_CACHE_DIR}
ln -s /dev/null ${TELEPORT_CACHE_DIR}
fi
tsh ssh root@cluster=${POS_ARGS[0]},node=${POS_ARGS[1]}
fi