infra/modules/mastodon/default.nix

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{
config,
pkgs,
flake,
inputs,
...
}:
{
age.secrets."mastodon-secret-key-base" = {
file = "${flake.self}/secrets/mastodon-secret-key-base.age";
mode = "400";
owner = config.services.mastodon.user;
};
age.secrets."mastodon-otp-secret" = {
file = "${flake.self}/secrets/mastodon-otp-secret.age";
mode = "400";
owner = config.services.mastodon.user;
};
age.secrets."mastodon-vapid-private-key" = {
file = "${flake.self}/secrets/mastodon-vapid-private-key.age";
mode = "400";
owner = config.services.mastodon.user;
};
age.secrets."mastodon-vapid-public-key" = {
file = "${flake.self}/secrets/mastodon-vapid-public-key.age";
mode = "400";
owner = config.services.mastodon.user;
};
age.secrets."mastodon-smtp-password" = {
file = "${flake.self}/secrets/mastodon-smtp-password.age";
mode = "400";
owner = config.services.mastodon.user;
};
age.secrets."mastodon-extra-env-secrets" = {
file = "${flake.self}/secrets/mastodon-extra-env-secrets.age";
mode = "400";
owner = config.services.mastodon.user;
};
# Nginx user needs access to mastodon unix sockets
users.users.nginx.extraGroups = [ "mastodon" ];
services.mastodon = {
enable = true;
# Different from WEB_DOMAIN in our case
localDomain = "${config.pub-solar-os.networking.domain}";
enableUnixSocket = true;
# Number of processes used by the mastodon-streaming service
# Recommended is the amount of your CPU cores minus one
# On our current 8-Core system, let's start with 5 for now
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streamingProcesses = 5;
# Processes used by the mastodon-web service
webProcesses = 2;
# Threads per process used by the mastodon-web service
webThreads = 5;
secretKeyBaseFile = "/run/agenix/mastodon-secret-key-base";
otpSecretFile = "/run/agenix/mastodon-otp-secret";
vapidPrivateKeyFile = "/run/agenix/mastodon-vapid-private-key";
vapidPublicKeyFile = "/run/agenix/mastodon-vapid-public-key";
smtp = {
createLocally = false;
host = "mail.pub.solar";
port = 587;
authenticate = true;
user = "admins@pub.solar";
passwordFile = "/run/agenix/mastodon-smtp-password";
fromAddress = "mastodon-notifications@pub.solar";
};
# Defined in ./opensearch.nix
elasticsearch.host = "127.0.0.1";
mediaAutoRemove = {
olderThanDays = 7;
};
extraEnvFiles = [ "/run/agenix/mastodon-extra-env-secrets" ];
extraConfig = {
WEB_DOMAIN = "mastodon.${config.pub-solar-os.networking.domain}";
# S3 File storage (optional)
# -----------------------
S3_ENABLED = "true";
S3_BUCKET = "pub-solar-mastodon";
S3_REGION = "europe-west-1";
S3_ENDPOINT = "https://gateway.tardigradeshare.io";
S3_ALIAS_HOST = "files.${config.pub-solar-os.networking.domain}";
# Translation (optional)
# -----------------------
DEEPL_PLAN = "free";
# OpenID Connect
# --------------
OIDC_ENABLED = "true";
OIDC_DISPLAY_NAME = "pub.solar ID";
OIDC_ISSUER = "https://auth.${config.pub-solar-os.networking.domain}/realms/${config.pub-solar-os.auth.realm}";
OIDC_DISCOVERY = "true";
OIDC_SCOPE = "openid,profile,email";
OIDC_UID_FIELD = "preferred_username";
OIDC_REDIRECT_URI = "https://mastodon.${config.pub-solar-os.networking.domain}/auth/auth/openid_connect/callback";
OIDC_SECURITY_ASSUME_EMAIL_IS_VERIFIED = "true";
# only use OIDC for login / registration
OMNIAUTH_ONLY = "true";
};
};
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services.restic.backups.mastodon-storagebox = {
paths = [ "/tmp/mastodon-backup.sql" ];
timerConfig = {
OnCalendar = "*-*-* 04:00:00 Etc/UTC";
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};
initialize = true;
passwordFile = config.age.secrets."restic-repo-storagebox-nachtigall".path;
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repository = "sftp:u377325@u377325.your-storagebox.de:/backups";
backupPrepareCommand = ''
${pkgs.sudo}/bin/sudo -u postgres ${pkgs.postgresql}/bin/pg_dump -d mastodon > /tmp/mastodon-backup.sql
'';
backupCleanupCommand = ''
rm /tmp/mastodon-backup.sql
'';
pruneOpts = [
"--keep-daily 7"
"--keep-weekly 4"
"--keep-monthly 3"
];
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};
}