mirror of
https://github.com/blakeblackshear/frigate.git
synced 2026-09-26 23:58:59 +03:00
Josh HawkinsandNicolas Mowen
41bc1a5844
* Support read-only rootfs with self-signed certs in /config/tls * Support read-only rootfs in s6 and pre-compile bytecode * Assert read-only rootfs support in CI * Document hardened read-only deployment * keep certsync's cert selection identical to nginx's * note the uid trade-off in user: mode * fail fast when EXTRA_GROUPS or a missing media volume meets read_only * keep nosuid and nodev on the /run tmpfs * support read_only in the default mode * don't take go2rtc down when the homekit file isn't writable * lead with the hardware consequence of switching to user: * refuse to write TLS material through a symlink as root * note that memryx writes models to the root filesystem * certsync watches whichever cert path nginx loaded
86 lines
2.5 KiB
Plaintext
Executable File
86 lines
2.5 KiB
Plaintext
Executable File
#!/command/with-contenv bash
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# shellcheck shell=bash
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# Start the CERTSYNC service
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set -o errexit -o nounset -o pipefail
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# Logs should be sent to stdout so that s6 can collect them
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# Not `nginx -s reload`: that has root parse /tmp/nginx/conf, which the
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# unprivileged nginx user can rewrite, and nginx chowns path directives on load.
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function reload_nginx() {
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local pid
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if ! pid=$(cat /tmp/nginx/nginx.pid 2>/dev/null); then
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echo "[ERROR] No nginx pid file found, not reloading"
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return 0
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fi
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if [[ ! "$pid" =~ ^[0-9]+$ ]] || [[ "$(cat "/proc/${pid}/comm" 2>/dev/null)" != "nginx" ]]; then
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echo "[ERROR] nginx pid file does not name a running nginx process, not reloading"
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return 0
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fi
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kill -HUP "$pid"
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}
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echo "[INFO] Starting certsync..."
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# Resolved once, and the condition must stay identical to the nginx run
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# script's. Testing only fullchain.pem here would pick the mounted cert on a
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# half-populated mount that nginx rejected, and the two fingerprints would then
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# never agree, reloading nginx every cycle forever.
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if [ -f /etc/letsencrypt/live/frigate/privkey.pem ] && [ -f /etc/letsencrypt/live/frigate/fullchain.pem ]; then
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lefile="/etc/letsencrypt/live/frigate/fullchain.pem"
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else
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lefile="/config/tls/fullchain.pem"
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fi
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tls_enabled=`python3 /usr/local/nginx/get_nginx_settings.py | jq -r .tls.enabled`
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listen_external_port=`python3 /usr/local/nginx/get_nginx_settings.py | jq -r .listen.external_port`
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while true
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do
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if [[ "$tls_enabled" == 'false' ]]; then
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sleep 9999
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continue
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fi
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if [ ! -e $lefile ]
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then
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echo "[ERROR] TLS certificate does not exist: $lefile"
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fi
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leprint=`openssl x509 -in $lefile -fingerprint -noout 2>&1 || echo 'failed'`
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case "$leprint" in
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*Fingerprint*)
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;;
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*)
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echo "[ERROR] Missing fingerprint from $lefile"
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;;
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esac
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liveprint=`echo | openssl s_client -showcerts -connect 127.0.0.1:$listen_external_port 2>&1 | openssl x509 -fingerprint 2>&1 | grep -i fingerprint || echo 'failed'`
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case "$liveprint" in
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*Fingerprint*)
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;;
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*)
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echo "[ERROR] Missing fingerprint from current nginx TLS cert"
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;;
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esac
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if [[ "$leprint" != "failed" && "$liveprint" != "failed" && "$leprint" != "$liveprint" ]]
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then
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echo "[INFO] Reloading nginx to refresh TLS certificate"
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echo "$lefile: $leprint"
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reload_nginx
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fi
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sleep 60
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done
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exit 0
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