d9f09c66f2
When the deploy-qemu script is run with less than 2 arguments, it ended with error, instead of printing usage. This was due to using 'set -u' and trying to expand unset variables "$1" and "$2" as part of checking if they were provided. The issue has been fixed by checking number of provided arguments, instead of their content. The same approach is used in 'deploy-openstack' script. Signed-off-by: Tomas Hozza <thozza@redhat.com>
73 lines
1.8 KiB
Bash
Executable file
73 lines
1.8 KiB
Bash
Executable file
#!/bin/bash
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#
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# deploy-qemu IMAGE USERDATA
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#
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# Starts an ephemeral virtual machine in qemu, injecting configuration via
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# cloud-init. Stopping this script stops the VM and discards all data.
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#
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# IMAGE -- An os image that can be booted by qemu and has cloud-init
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# installed and enabled. No changes are made to this file.
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#
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# USERDATA -- A cloud-init user-data config file, or a directory of
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# configuration as accepted by the `gen-user-data` tool.
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#
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# In addition, if the QEMU_EXTRA_ARGS environment variable is defined, it adds
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# its content as additional arguments to qemu.
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set -euo pipefail
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if [[ "$#" != 2 ]]; then
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echo "usage: $0 IMAGE USERDATA"
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exit 1
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fi
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scriptdir=$(dirname "$0")
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image=$1
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userdata=$2
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read -ra qemu_extra_args <<< "${QEMU_EXTRA_ARGS:-}"
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workdir=$(mktemp -d "$scriptdir/qemu-tmp-XXXXXX")
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function cleanup() {
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rm -rf "$workdir"
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}
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trap cleanup EXIT
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mkdir "$workdir/cidata"
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if [ -d "$userdata" ]; then
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"$scriptdir/gen-user-data" "$userdata" > "$workdir/cidata/user-data"
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else
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cp "$userdata" "$workdir/cidata/user-data"
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fi
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echo -e "instance-id: nocloud\nlocal-hostname: vm\n" > "$workdir/cidata/meta-data"
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case $(uname -s) in
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"Linux")
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genisoimage \
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-input-charset utf-8 \
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-output "$workdir/cloudinit.iso" \
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-volid cidata \
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-joliet \
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-rock \
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-quiet \
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-graft-points \
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"$workdir/cidata/user-data" \
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"$workdir/cidata/meta-data"
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;;
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"Darwin")
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# conviently uses the last component of source as volumeid, which has to be cidata
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hdiutil makehybrid -iso -joliet -o "$workdir/cloudinit.iso" "$workdir/cidata"
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;;
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esac
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qemu-system-x86_64 \
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-M accel=kvm:hvf \
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-m 1024 \
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-snapshot \
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-cpu host \
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-net nic,model=virtio \
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-net user,hostfwd=tcp::2222-:22,hostfwd=tcp::4430-:443 \
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-cdrom "$workdir/cloudinit.iso" \
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"${qemu_extra_args[@]}" "$image"
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