ARO-RP/hack/ssh-agent.sh

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#!/bin/bash -e
# ssh-agent.sh is intended to behave very similarly to ssh: specify the master or
# worker hostname that you want to connect to, along with any other ssh options
# you want to pass in
usage() {
echo "usage: CLUSTER=cluster $0 hostname_pattern" >&2
echo " Examples: CLUSTER=cluster $0 master1" >&2
echo " CLUSTER=cluster $0 eastus1 # worker node 1" >&2
echo " CLUSTER=cluster $0 bootstrap" >&2
exit 1
}
if [[ "$#" -ne 1 ]]; then
usage
fi
cleanup() {
rm -rf id_rsa
}
trap cleanup EXIT
eval "$(ssh-agent | grep -v '^echo ')"
if [[ -z "$RESOURCEID" ]]; then
if [[ -z "$CLUSTER" ]]; then
echo "CLUSTER must be specified"
usage
fi
RESOURCEID="/subscriptions/${AZURE_SUBSCRIPTION_ID}/resourceGroups/${RESOURCEGROUP}/providers/Microsoft.RedHatOpenShift/openShiftClusters/${CLUSTER}"
fi
CLUSTER_RESOURCEGROUP=$(go run ./hack/db "$RESOURCEID" | jq -r .openShiftCluster.properties.clusterProfile.resourceGroupId | cut -d/ -f5)
go run ./hack/db "$RESOURCEID" | jq -r .openShiftCluster.properties.sshKey | base64 -d | openssl rsa -inform der -outform pem >id_rsa 2>/dev/null
chmod 0600 id_rsa
# seeing ARM cache issues with -g $CLUSTER_RESOURCEGROUP, so using --query
IP=$(az network nic list --query "[?resourceGroup == '$CLUSTER_RESOURCEGROUP' && contains(name, '$1')].ipConfigurations[0].privateIpAddress" -o tsv)
if [[ $(grep -c . <<<"$IP") -ne 1 ]]; then
echo -e "VM with pattern $1 not found in resourceGroup $CLUSTER_RESOURCEGROUP\n"
usage
fi
ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -i id_rsa -l core "$IP"