51 lines
1.7 KiB
Nix
51 lines
1.7 KiB
Nix
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{ config, pkgs, ... }:
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let
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manageSecrets = conf: secrets: output: keys:
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/*
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`secrets` are in the form "SECRET_1=secret\nSECRET_2=secre"
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For each name in `keys` we search for a line `$NAME=<secret>`,
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(`<secret>` is just everything up to the end of the line)
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and we substitute `$NAME` by `<secret>` in `conf`, and we print
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the result in `output`.
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*/
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let
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check = key: ''
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if grep ${key} ${secrets} > /dev/null
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then
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true
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else
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echo "Missing ${key} from secrets"
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exit 1
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fi
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'';
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get = key: "$(grep '${key}=' ${secrets} | sed 's/^.*=//' | sed -e 's/[\\/&]/\\\\&/g')";
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checks = pkgs.lib.concatMapStrings check;
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replaces = pkgs.lib.concatMapStrings (key: "s/${key}/${get key}/;");
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in pkgs.writeShellScriptBin "preStart" ''
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${checks keys}
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sed "${replaces keys}" ${conf} > ${output}
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'';
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startScript = pkgs.writeShellScriptBin "start" ''
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${manageSecrets
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./matterbridge.toml "$CREDENTIALS_DIRECTORY/secrets" "$RUNTIME_DIRECTORY/conf.toml"
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[ "SECRET_MATTERMOST_WEBHOOK" ]}/bin/preStart
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${pkgs.matterbridge}/bin/matterbridge -conf $RUNTIME_DIRECTORY/conf.toml
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'';
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in {
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networking.firewall.allowedTCPPorts = [ 52187 ];
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systemd.services.matterbridge = {
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description = "Chat platform bridge";
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wantedBy = [ "multi-user.target" ];
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after = [ "network.target" ];
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serviceConfig = {
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DynamicUser = true;
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LoadCredential = "secrets:${config.age.secrets.matterbridge.path}";
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ExecStart = "${startScript}/bin/start";
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Restart = "always";
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RestartSec = "10";
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RuntimeDirectory = "matterbridge";
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};
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};
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}
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