90 lines
2.0 KiB
Bash
Executable File
90 lines
2.0 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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source=$1
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hostname=$2
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if [[ -v 3 ]];then
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convert=true;else
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convert=false;fi
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cat << end
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source=$source
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hostname=$hostname
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convert=$convert
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end
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workdir=/dev/shm/nspawn-oci
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mkdir -p $workdir
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skopeo_output=$(echo $workdir/$source | sed s.://./.g)
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#mkdir -p $skopeo_output
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#skopeo copy $source oci:$skopeo_output:latest
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umoci_output=$workdir/$hostname
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#rm -rf $umoci_output
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#umoci --verbose unpack --image $skopeo_output $umoci_output
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oci_config=$umoci_output/config.json
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if $convert;then
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# nspawn mode
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mkdir -p /etc/systemd/nspawn
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nspawn_config=/etc/systemd/nspawn/$hostname.nspawn
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cat << end > $nspawn_config
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[Exec]
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ProcessTwo=true
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end
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for environment in $(jq --compact-output '.process.env' $oci_config | sed "s/[][]//g;s/\"//g;s/,/ /g")
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do
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echo $environment
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cat << end >> $nspawn_config
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Environment=$environment
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end
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done
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cat << end >> $nspawn_config
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WorkingDirectory=$(jq --compact-output '.process.cwd' $oci_config | sed "s/[][]//g;s/\"//g;s/,/ /g")
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Parameters=$(jq --compact-output '.process.args' $oci_config | sed "s/[][]//g;s/,/ /g")
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[Network]
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VirtualEthernet=no
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[Files]
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end
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for mount in $(jq -c '.mounts[]' $oci_config); do
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source=$(echo $mount | jq -r '.source' )
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echo $source
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if [ $source == 'none' ]; then
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echo 'container requires bind mount'
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destination=$(echo $mount | jq -r '.destination')
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read -p "$destination:" source
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cat << end >> $nspawn_config
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Bind=$source:$destination
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end
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fi
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done
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machinectl import-fs $umoci_output/rootfs $2
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echo "Edit $nspawn_config before starting"
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else
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# oci mode
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mkdir -p /etc/systemd/system/systemd-nspawn@$hostname.service.d/
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override=/etc/systemd/system/systemd-nspawn@$hostname.service.d/override.conf
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cat << end > $override
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[Service]
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ExecStart=systemd-nspawn --oci-bundle=/var/lib/machines/%i --machine %i
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end
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machinectl import-fs $umoci_output $hostname
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echo "Edit /var/lib/machines/$hostname/config.json before starting"
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fi
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cat << end
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Start/Enable with systemd-nspawn@$hostname.service
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$hostname created from $source
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end |