Script to create basic config-drive

New script that creates a basic config-drive, ideal to testing purpose.

contrib/create-basic-configdrive

@@ -0,0 +1,152 @@
+#!/bin/bash
+
+DEFAULT_ETCD_DISCOVERY="https//discovery.etcd.io/TOKEN"
+DEFAULT_ETCD_ADDR="\$public_ipv4:4001"
+DEFAULT_ETCD_PEER_ADDR="\$private_ipv4:7001"
+
+USAGE="Usage: $0 -H HOSTNAME -S SSH_FILE [-p /target/path] [-d|-e|-i|-n|-t|-h]
+Options:
+    -d URL      Full URL path to discovery endpoint.
+    -e IP:PORT  Address for client communication.
+    -H HOSTNAME Machine hostname.
+    -i IP:PORT  Address for server communication.
+    -n NAME     etcd node name.
+    -p DEST     Create config-drive ISO image to the given path.
+    -S FILE     SSH keys file.
+    -t TOKEN    Token ID from https://discovery.etcd.io.
+    -h          This help
+
+This tool creates a basic config-drive ISO image.
+"
+
+CLOUD_CONFIG="#cloud-config
+
+coreos:
+  etcd:
+    name: <ETCD_NAME>
+    discovery: <ETCD_DISCOVERY>
+    addr: <ETCD_ADDR>
+    peer-addr: <ETCD_PEER_ADDR>
+ssh_authorized_keys:
+  - <SSH_KEY>
+hostname: <HOSTNAME>
+"
+REGEX_SSH_FILE="^ssh-(rsa|dss) [-A-Za-z0-9+\/]+[=]{0,2} .+"
+
+while getopts "d:e:H:i:n:p:S:t:h" OPTION
+do
+    case $OPTION in
+        d) ETCD_DISCOVERY="$OPTARG" ;;
+        e) ETCD_ADDR="$OPTARG" ;;
+        H) HNAME="$OPTARG" ;;
+        i) ETCD_PEER_ADDR="$OPTARG" ;;
+        n) ETCD_NAME="$OPTARG" ;;
+        p) DEST="$OPTARG" ;;
+        S) SSH_FILE="$OPTARG" ;;
+        t) TOKEN="$OPTARG" ;;
+        h) echo "$USAGE"; exit;;
+        *) exit 1;;
+    esac
+done
+
+# root user forbidden
+if [ $(id -u) -eq 0 ]; then
+    echo "$0: This script should not be run as root." >&2
+    exit 1
+fi
+
+if [ -z "$HNAME" ]; then
+    echo "$0: The hostname parameter '-H' is required." >&2
+    exit 1
+fi
+
+if [ -z "$SSH_FILE" ]; then
+    echo "$0: The SSH filename parameter '-S' is required." >&2
+    exit 1
+fi
+
+if [[ ! -r "$SSH_FILE" ]]; then
+    echo "$0: The SSH file (${SSH_FILE}) was not found." >&2
+    exit 1
+fi
+
+if [ $(cat "$SSH_FILE" | wc -l) -eq 0 ]; then
+    echo "$0: The SSH file (${SSH_FILE}) is empty." >&2
+    exit 1
+fi
+
+if [ $(grep -v -E "$REGEX_SSH_FILE" "$SSH_FILE" | wc -l) -gt 0 ]; then
+    echo "$0: The SSH file (${SSH_FILE}) content is invalid." >&2
+    exit 1
+fi
+
+if [ -z "$DEST" ]; then
+    DEST=$PWD
+fi
+
+if [[ ! -d "$DEST" ]]; then
+    echo "$0: Target path (${DEST}) do not exists." >&2
+    exit 1
+fi
+
+if [ ! -z "$ETCD_DISCOVERY" ] && [ ! -z "$TOKEN" ]; then
+    echo "$0: You cannot specify both discovery token and discovery URL." >&2
+    exit 1
+fi
+
+if [ ! -z "$TOKEN" ]; then
+    ETCD_DISCOVERY="${DEFAULT_ETCD_DISCOVERY//TOKEN/$TOKEN}"
+fi
+
+if [ -z "$ETCD_DISCOVERY" ]; then
+    ETCD_DISCOVERY=$DEFAULT_ETCD_DISCOVERY
+fi
+
+if [ -z "$ETCD_NAME" ]; then
+    ETCD_NAME=$HNAME
+fi
+
+if [ -z "$ETCD_ADDR" ]; then
+    ETCD_ADDR=$DEFAULT_ETCD_ADDR
+fi
+
+if [ -z "$ETCD_PEER_ADDR" ]; then
+    ETCD_PEER_ADDR=$DEFAULT_ETCD_PEER_ADDR
+fi
+
+
+WORKDIR="${DEST}/tmp.${RANDOM}"
+mkdir "$WORKDIR"
+trap "rm -rf '${WORKDIR}'" EXIT
+
+CONFIG_DIR="${WORKDIR}/openstack/latest"
+CONFIG_FILE="${CONFIG_DIR}/user_data"
+CONFIGDRIVE_FILE="${DEST}/${HNAME}.iso"
+
+mkdir -p "$CONFIG_DIR"
+
+while read l; do
+    if [ -z "$SSH_KEY" ]; then
+        SSH_KEY="$l"
+    else
+        SSH_KEY="$SSH_KEY
+  - $l"
+    fi
+done < "$SSH_FILE"
+
+CLOUD_CONFIG="${CLOUD_CONFIG/<ETCD_NAME>/${ETCD_NAME}}"
+CLOUD_CONFIG="${CLOUD_CONFIG/<ETCD_DISCOVERY>/${ETCD_DISCOVERY}}"
+CLOUD_CONFIG="${CLOUD_CONFIG/<ETCD_ADDR>/${ETCD_ADDR}}"
+CLOUD_CONFIG="${CLOUD_CONFIG/<ETCD_PEER_ADDR>/${ETCD_PEER_ADDR}}"
+CLOUD_CONFIG="${CLOUD_CONFIG/<SSH_KEY>/${SSH_KEY}}"
+CLOUD_CONFIG="${CLOUD_CONFIG/<HOSTNAME>/${HNAME}}"
+
+echo "$CLOUD_CONFIG" > "$CONFIG_FILE"
+
+mkisofs -R -V config-2 -o $CONFIGDRIVE_FILE $WORKDIR
+
+echo
+echo
+echo "Success! The config-drive image was created on ${CONFIGDRIVE_FILE}"
+
+# vim: ts=4 et