certificates/systemd/cert-renewer@.service
2021-05-03 16:19:36 -07:00

32 lines
1.2 KiB
Desktop File

[Unit]
Description=Certificate renewer for %I
After=network-online.target
Documentation=https://smallstep.com/docs/step-ca/certificate-authority-server-production
StartLimitIntervalSec=0
[Service]
Type=oneshot
User=root
Environment=STEPPATH=/etc/step-ca \
CERT_LOCATION=/etc/step/certs/%i.crt \
KEY_LOCATION=/etc/step/certs/%i.key
; ExecStartPre checks if the certificate is ready for renewal,
; based on the exit status of the command.
; (In systemd 243 and above, you can use ExecCondition= here.)
ExecStartPre=/usr/bin/env bash -c \
'step certificate inspect $CERT_LOCATION --format json --roots "$STEPPATH/certs/root_ca.crt" | \
jq -e "(((.validity.start | fromdate) + \
((.validity.end | fromdate) - (.validity.start | fromdate)) * 0.66) \
- now) <= 0" > /dev/null'
; ExecStart renews the certificate, if ExecStartPre was successful.
ExecStart=/usr/bin/step ca renew --force $CERT_LOCATION $KEY_LOCATION
; Try to reload or restart the systemd service that relies on this cert-renewer
; If the relying service doesn't exist, forge ahead.
ExecStartPost=/usr/bin/env bash -c "if ! systemctl --quiet is-enabled %i.service ; then exit 0; fi; systemctl try-reload-or-restart %i"
[Install]
WantedBy=multi-user.target