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CoreOS swap configuration for systemd
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| # /etc/systemd/system/swap.service | |
| [Unit] | |
| Description=Turn on swap | |
| [Service] | |
| Type=oneshot | |
| Environment="SWAP_PATH=/var/vm" "SWAP_FILE=swapfile1" | |
| ExecStartPre=-/usr/bin/rm -rf ${SWAP_PATH} | |
| ExecStartPre=/usr/bin/mkdir -p ${SWAP_PATH} | |
| ExecStartPre=/usr/bin/touch ${SWAP_PATH}/${SWAP_FILE} | |
| ExecStartPre=/bin/bash -c "fallocate -l 2048m ${SWAP_PATH}/${SWAP_FILE}" | |
| ExecStartPre=/usr/bin/chmod 600 ${SWAP_PATH}/${SWAP_FILE} | |
| ExecStartPre=/usr/sbin/mkswap ${SWAP_PATH}/${SWAP_FILE} | |
| ExecStartPre=/usr/sbin/sysctl vm.swappiness=10 | |
| ExecStart=/sbin/swapon ${SWAP_PATH}/${SWAP_FILE} | |
| ExecStop=/sbin/swapoff ${SWAP_PATH}/${SWAP_FILE} | |
| ExecStopPost=-/usr/bin/rm -rf ${SWAP_PATH} | |
| RemainAfterExit=true | |
| [Install] | |
| WantedBy=multi-user.target |
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