91 lines
3.4 KiB
Bash
Executable File
91 lines
3.4 KiB
Bash
Executable File
#!/bin/bash
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set -eu
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# whitespace (space or newline) separated list
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OVERCLOUD_HOSTS=${OVERCLOUD_HOSTS:-""}
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OVERCLOUD_SSH_USER=${OVERCLOUD_SSH_USER:-"$USER"}
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# this is just for compatibility with CI
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SUBNODES_SSH_KEY=${SUBNODES_SSH_KEY:-"$HOME/.ssh/id_rsa"}
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# this is the intended variable for overriding
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OVERCLOUD_SSH_KEY=${OVERCLOUD_SSH_KEY:-"$SUBNODES_SSH_KEY"}
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SSH_TIMEOUT_OPTIONS=${SSH_TIMEOUT_OPTIONS:-"-o ConnectionAttempts=6 -o ConnectTimeout=30"}
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SSH_HOSTKEY_OPTIONS="-o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null"
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SHORT_TERM_KEY_COMMENT="TripleO split stack short term key"
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SLEEP_TIME=5
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function overcloud_ssh_hosts_json {
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echo "$OVERCLOUD_HOSTS" | python -c '
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from __future__ import print_function
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import json, re, sys
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print(json.dumps(re.split("\s+", sys.stdin.read().strip())))'
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}
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function overcloud_ssh_key_json {
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# we pass the contents to Mistral instead of just path, otherwise
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# the key file would have to be readable for the mistral user
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cat "$1" | python -c 'import json,sys; print(json.dumps(sys.stdin.read()))'
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}
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function workflow_finished {
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local execution_id="$1"
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openstack workflow execution show -f shell $execution_id | grep 'state="SUCCESS"' > /dev/null
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}
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function generate_short_term_keys {
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local tmpdir=$(mktemp -d)
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ssh-keygen -N '' -t rsa -b 4096 -f "$tmpdir/id_rsa" -C "$SHORT_TERM_KEY_COMMENT" > /dev/null
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echo "$tmpdir"
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}
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if [ -z "$OVERCLOUD_HOSTS" ]; then
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echo 'Please set $OVERCLOUD_HOSTS'
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exit 1
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fi
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echo "Starting workflow to create ssh admin on deployed servers."
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echo "SSH user: $OVERCLOUD_SSH_USER"
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echo "SSH key file: $OVERCLOUD_SSH_KEY"
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echo "Hosts: $OVERCLOUD_HOSTS"
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echo
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SHORT_TERM_KEY_DIR=$(generate_short_term_keys)
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SHORT_TERM_KEY_PRIVATE="$SHORT_TERM_KEY_DIR/id_rsa"
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SHORT_TERM_KEY_PUBLIC="$SHORT_TERM_KEY_DIR/id_rsa.pub"
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SHORT_TERM_KEY_PUBLIC_CONTENT=$(cat $SHORT_TERM_KEY_PUBLIC)
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for HOST in $OVERCLOUD_HOSTS; do
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echo "Inserting TripleO short term key for $HOST"
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# prepending an extra newline so that if authorized_keys didn't
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# end with a newline previously, we don't end up garbling it up
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ssh $SSH_TIMEOUT_OPTIONS $SSH_HOSTKEY_OPTIONS -i "$OVERCLOUD_SSH_KEY" -l "$OVERCLOUD_SSH_USER" "$HOST" "echo -e '\n$SHORT_TERM_KEY_PUBLIC_CONTENT' >> \$HOME/.ssh/authorized_keys"
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done
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echo "Starting ssh admin enablement workflow"
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EXECUTION_PARAMS="{\"ssh_user\": \"$OVERCLOUD_SSH_USER\", \"ssh_servers\": $(overcloud_ssh_hosts_json), \"ssh_private_key\": $(overcloud_ssh_key_json "$SHORT_TERM_KEY_PRIVATE")}"
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EXECUTION_CREATE_OUTPUT=$(openstack workflow execution create -f shell -d 'deployed server ssh admin creation' tripleo.access.v1.enable_ssh_admin "$EXECUTION_PARAMS")
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echo "$EXECUTION_CREATE_OUTPUT"
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EXECUTION_ID=$(echo "$EXECUTION_CREATE_OUTPUT" | grep '^id=' | awk '-F"' '{ print $2 }')
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if [ -z "$EXECUTION_ID" ]; then
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echo "Failed to get workflow execution ID for ssh admin creation workflow"
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exit 1
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fi
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echo -n "Waiting for the workflow execution to finish (id $EXECUTION_ID)."
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while ! workflow_finished $EXECUTION_ID; do
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sleep $SLEEP_TIME
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echo -n .
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done
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echo # newline after the previous dots
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for HOST in $OVERCLOUD_HOSTS; do
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echo "Removing TripleO short term key from $HOST"
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ssh $SSH_TIMEOUT_OPTIONS $SSH_HOSTKEY_OPTIONS -i "$OVERCLOUD_SSH_KEY" -l "$OVERCLOUD_SSH_USER" "$HOST" "sed -i -e '/$SHORT_TERM_KEY_COMMENT/d' \$HOME/.ssh/authorized_keys"
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done
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echo "Removing short term keys locally"
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rm -r "$SHORT_TERM_KEY_DIR"
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echo "Success."
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