mirror of
https://github.com/flatcar/scripts.git
synced 2025-08-10 14:36:58 +02:00
fc9e5baa0d
This check helps to avoid exit the script with the message indicating success even though the mkisofs is missing and an image has not been created.
159 lines
3.7 KiB
Bash
Executable File
159 lines
3.7 KiB
Bash
Executable File
#!/bin/bash
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DEFAULT_ETCD_DISCOVERY="https//discovery.etcd.io/TOKEN"
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DEFAULT_ETCD_ADDR="\$public_ipv4:4001"
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DEFAULT_ETCD_PEER_ADDR="\$private_ipv4:7001"
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USAGE="Usage: $0 -H HOSTNAME -S SSH_FILE [-p /target/path] [-d|-e|-i|-n|-t|-h]
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Options:
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-d URL Full URL path to discovery endpoint.
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-e IP:PORT Address for client communication.
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-H HOSTNAME Machine hostname.
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-i IP:PORT Address for server communication.
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-n NAME etcd node name.
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-p DEST Create config-drive ISO image to the given path.
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-S FILE SSH keys file.
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-t TOKEN Token ID from https://discovery.etcd.io.
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-h This help
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This tool creates a basic config-drive ISO image.
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"
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CLOUD_CONFIG="#cloud-config
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coreos:
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etcd:
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name: <ETCD_NAME>
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discovery: <ETCD_DISCOVERY>
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addr: <ETCD_ADDR>
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peer-addr: <ETCD_PEER_ADDR>
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ssh_authorized_keys:
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- <SSH_KEY>
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hostname: <HOSTNAME>
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"
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REGEX_SSH_FILE="^ssh-(rsa|dss|ed25519) [-A-Za-z0-9+\/]+[=]{0,2} .+"
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while getopts "d:e:H:i:n:p:S:t:h" OPTION
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do
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case $OPTION in
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d) ETCD_DISCOVERY="$OPTARG" ;;
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e) ETCD_ADDR="$OPTARG" ;;
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H) HNAME="$OPTARG" ;;
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i) ETCD_PEER_ADDR="$OPTARG" ;;
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n) ETCD_NAME="$OPTARG" ;;
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p) DEST="$OPTARG" ;;
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S) SSH_FILE="$OPTARG" ;;
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t) TOKEN="$OPTARG" ;;
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h) echo "$USAGE"; exit;;
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*) exit 1;;
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esac
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done
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# root user forbidden
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if [ $(id -u) -eq 0 ]; then
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echo "$0: This script should not be run as root." >&2
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exit 1
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fi
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# mkisofs tool check
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if ! which mkisofs &>/dev/null; then
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echo "$0: mkisofs tool is required to create image." >&2
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exit 1
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fi
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if [ -z "$HNAME" ]; then
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echo "$0: The hostname parameter '-H' is required." >&2
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exit 1
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fi
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if [ -z "$SSH_FILE" ]; then
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echo "$0: The SSH filename parameter '-S' is required." >&2
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exit 1
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fi
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if [[ ! -r "$SSH_FILE" ]]; then
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echo "$0: The SSH file (${SSH_FILE}) was not found." >&2
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exit 1
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fi
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if [ $(cat "$SSH_FILE" | wc -l) -eq 0 ]; then
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echo "$0: The SSH file (${SSH_FILE}) is empty." >&2
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exit 1
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fi
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if [ $(grep -v -E "$REGEX_SSH_FILE" "$SSH_FILE" | wc -l) -gt 0 ]; then
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echo "$0: The SSH file (${SSH_FILE}) content is invalid." >&2
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exit 1
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fi
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if [ -z "$DEST" ]; then
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DEST=$PWD
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fi
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if [[ ! -d "$DEST" ]]; then
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echo "$0: Target path (${DEST}) do not exists." >&2
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exit 1
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fi
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if [ ! -z "$ETCD_DISCOVERY" ] && [ ! -z "$TOKEN" ]; then
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echo "$0: You cannot specify both discovery token and discovery URL." >&2
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exit 1
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fi
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if [ ! -z "$TOKEN" ]; then
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ETCD_DISCOVERY="${DEFAULT_ETCD_DISCOVERY//TOKEN/$TOKEN}"
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fi
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if [ -z "$ETCD_DISCOVERY" ]; then
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ETCD_DISCOVERY=$DEFAULT_ETCD_DISCOVERY
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fi
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if [ -z "$ETCD_NAME" ]; then
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ETCD_NAME=$HNAME
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fi
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if [ -z "$ETCD_ADDR" ]; then
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ETCD_ADDR=$DEFAULT_ETCD_ADDR
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fi
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if [ -z "$ETCD_PEER_ADDR" ]; then
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ETCD_PEER_ADDR=$DEFAULT_ETCD_PEER_ADDR
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fi
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WORKDIR="${DEST}/tmp.${RANDOM}"
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mkdir "$WORKDIR"
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trap "rm -rf '${WORKDIR}'" EXIT
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CONFIG_DIR="${WORKDIR}/openstack/latest"
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CONFIG_FILE="${CONFIG_DIR}/user_data"
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CONFIGDRIVE_FILE="${DEST}/${HNAME}.iso"
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mkdir -p "$CONFIG_DIR"
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while read l; do
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if [ -z "$SSH_KEY" ]; then
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SSH_KEY="$l"
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else
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SSH_KEY="$SSH_KEY
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- $l"
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fi
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done < "$SSH_FILE"
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CLOUD_CONFIG="${CLOUD_CONFIG/<ETCD_NAME>/${ETCD_NAME}}"
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CLOUD_CONFIG="${CLOUD_CONFIG/<ETCD_DISCOVERY>/${ETCD_DISCOVERY}}"
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CLOUD_CONFIG="${CLOUD_CONFIG/<ETCD_ADDR>/${ETCD_ADDR}}"
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CLOUD_CONFIG="${CLOUD_CONFIG/<ETCD_PEER_ADDR>/${ETCD_PEER_ADDR}}"
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CLOUD_CONFIG="${CLOUD_CONFIG/<SSH_KEY>/${SSH_KEY}}"
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CLOUD_CONFIG="${CLOUD_CONFIG/<HOSTNAME>/${HNAME}}"
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echo "$CLOUD_CONFIG" > "$CONFIG_FILE"
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mkisofs -R -V config-2 -o $CONFIGDRIVE_FILE $WORKDIR
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echo
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echo
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echo "Success! The config-drive image was created on ${CONFIGDRIVE_FILE}"
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# vim: ts=4 et
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