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Self-hosted: fix the Traefik examples and the embedded IdP management.json block - #1113
Brings the self-hosted Traefik references and examples in line with the installers, and moves them to traefik:v3.7.18. Corrects three configuration examples that do not work as published, or that weaken security.
Traefik version. Every Traefik v3.7 release up to v3.7.17 is in the range of a published Traefik security advisory (for example GHSA-xv5x-242w-7hf7 for v3.7.14 to v3.7.16, and GHSA-p956-6gvv-mxqp, GHSA-cp28-5662-543f and GHSA-rr42-h8r2-f28g up to v3.7.17, all fixed in v3.7.18). This PR uses traefik:v3.7.18, the version netbirdio/netbird#8606 moves the installers to and #1116 moves the other docs pages to. The installers released so far (v0.83.1 and earlier) still pin v3.7.14. This PR is meant to merge after #1116; it will be rebased onto it then.
Installer Traefik version (/selfhosted/maintenance/configuration-files, /selfhosted/enterprise/getting-started, /selfhosted/migration/combined-container)
getting-started.sh, getting-started-enterprise.sh and migrate.sh have pinned a v3.7 Traefik since v0.81.0 (v3.7.14 through v0.83.1; v3.7.18 with netbirdio/netbird#8606). The two services tables and the combined-container migration's "What's new" said traefik:v3.6; they now say traefik:v3.7.18.
Old Traefik. It ran traefik:v3.2 with no aliasHeadersStrategy settings.
No timeouts disabled. It set no respondingTimeouts. With this configuration, Traefik resets each peer's Signal stream every 60 seconds, and the Management job stream about as often, so peers keep reconnecting.
Open dashboard.--api.insecure=true together with "8080:8080" served Traefik's API without authentication on every interface of the host.
Missing from the requirements list. The "Traefik Configuration Requirements" list did not include either setting, so an admin adapting an existing Traefik had no way to learn about them.
Changes:
The example now uses traefik:v3.7.18. It disables the three websecurerespondingTimeouts, as getting-started.sh does, and sets aliasHeadersStrategy=delete on both entrypoints. --api.insecure and the 8080 port are gone.
Requirements 5 (no timeouts on websecure) and 6 (header handling, Traefik v3.7.18 or later) were added to the list, with the flags as command args.
Traefik releases older than v3.7.12 do not accept aliasHeadersStrategy and fail to start with it (field not found, node: aliasHeadersStrategy). That is why the version and the flags change together.
Configuration files reference, Traefik service (/selfhosted/maintenance/configuration-files)
The excerpt of what getting-started.sh writes is updated to match the installer's output (v0.83.0, with the Traefik tag from netbirdio/netbird#8606):
The Note says what the respondingTimeouts settings prevent and that the installers require Traefik v3.7.13 or later for aliasHeadersStrategy (check_traefik_image in getting-started.sh; getting-started-enterprise.sh).
Local user management, "Older multi-container setup (management.json)" (/selfhosted/identity-providers/local)
The previous snippet did not work, for three reasons:
It set EmbeddedIdP.DataDir and a top-level EncryptionKey, but Management has neither key.
It omitted EmbeddedIdP.Issuer, without which Management exits at startup with failed to create embedded IDP service: issuer is required.
The three NETBIRD_EMBEDDED_IDP_* and NETBIRD_ENCRYPTION_KEY environment variables it listed are not read by Management.
The section now opens with a Warning: it is only for a new deployment with no users yet. On a deployment that already has users from another identity provider, Management starts but the embedded identity provider has none of them, and the first-user setup page does not appear because accounts exist (management/server/instance/manager.go, loadSetupRequired), so nobody can sign in. Those deployments are sent to the External IdP to Embedded IdP migration guide (netbird-idp-migrate). It also says the reverse proxy must route /oauth2/* to Management, where the embedded identity provider is served (idp/dex/provider.go).
The section shows the fields Management uses: DataStoreEncryptionKey, and EmbeddedIdP with Enabled, Issuer, DashboardRedirectURIs and SessionCookieEncryptionKey. It says to add or change these keys rather than replace the file. It also documents:
the dashboard AUTH_* values that must match (the issuer, client ID and audience netbird-dashboard, and the /nb-auth and /nb-silent-auth redirect paths), since Management sets netbird-dashboard as the client ID and audience (ApplyEmbeddedIdPConfig);
keep an existing DataStoreEncryptionKey;
with the key empty or missing, Management generates one and writes it into management.json, and exits with failed to save config with new encryption key when the file is mounted read-only;
without SessionCookieEncryptionKey, the embedded IdP's session cookie is not encrypted;
a leftover HttpConfig section does not stop Management: its identity provider fields are overridden (management/cmd/management.go, ApplyEmbeddedIdPConfig) with the warning overriding HttpConfig with EmbeddedIdP config, and its LetsEncryptDomain, or CertFile and CertKey, are still used for Management's TLS (boot.go).
Verified on NetBird v0.83.0 (netbirdio/management, signal and relay as separate containers) with Traefik 3.2.5 and 3.7.14; v3.7.18 was checked to start with the example's flags. Source references at v0.83.0:
No actionable comments were generated in the recent review.
Walkthrough
The self-hosted documentation updates Traefik versions, proxy requirements, and configuration examples. It also revises the multi-container setup instructions for the local identity provider.
Changes: Traefik deployment documentation
Layer / File(s)
Summary
Proxy requirements and example src/pages/selfhosted/external-reverse-proxy.mdx
The requirements and Compose example document zero responding timeouts and aliasHeadersStrategy=delete. The example uses Traefik v3.7.18 and no longer exposes the insecure API or dashboard port. A note describes version constraints and the NetBird-specific settings.
The documentation updates Traefik version references. The maintenance example documents network settings, header strategies, responding timeouts, and Signal connection resets when timeout settings are omitted.
The instructions document DataStoreEncryptionKey and EmbeddedIdP settings, dashboard environment values, and /oauth2/* proxy routing. They also describe key requirements, startup errors, existing-user migration guidance, and when to retain or remove HttpConfig.
The documentation now pins a Traefik version that is newer than the affected range for the reported resource-exhaustion advisory. No remaining merge-blocking risk was identified in these documentation updates.
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The title names two changes: Traefik examples and the embedded IdP management.json block. The changeset updates Traefik to v3.7.18 across several self-hosted pages and revises the embedded IdP local u…
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The title names two changes: Traefik examples and the embedded IdP management.json block. The changeset updates Traefik to v3.7.18 across several self-hosted pages and revises the embedded IdP local user guidance to use the new EmbeddedIdP config fields. The title is accurate and specific, though it is slightly long and lists two topics instead of one main change. It is also a 'fix' framing that matches the corrections in the objectives.
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SunsetDrifter
changed the title
Self-hosted: show Traefik v3.7.14 with aliasHeadersStrategy, and fix the multi-container embedded IdP config
Self-hosted: list the Traefik version the installers ship (v3.7.14)
Nov 13, 2026
SunsetDrifter
changed the title
Self-hosted: list the Traefik version the installers ship (v3.7.14)
Self-hosted: fix the Traefik examples and the embedded IdP management.json block
Nov 13, 2026
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Actionable comments posted: 1
Fix comments: Fix CodeRabbit comments on this PR
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Inline comments:
Review comments at @src/pages/selfhosted/external-reverse-proxy.mdx:
- Line 829: Update the Traefik image pin from v3.7.14 to patched v3.7.17 and
align the matching documentation and installer pins. In the upgrade guidance,
change the validated-version wording only after v3.7.17 has been validated.
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What changed
Brings the self-hosted Traefik references and examples in line with the installers, and moves them to
traefik:v3.7.18. Corrects three configuration examples that do not work as published, or that weaken security.Traefik version. Every Traefik v3.7 release up to v3.7.17 is in the range of a published Traefik security advisory (for example GHSA-xv5x-242w-7hf7 for v3.7.14 to v3.7.16, and GHSA-p956-6gvv-mxqp, GHSA-cp28-5662-543f and GHSA-rr42-h8r2-f28g up to v3.7.17, all fixed in v3.7.18). This PR uses
traefik:v3.7.18, the version netbirdio/netbird#8606 moves the installers to and #1116 moves the other docs pages to. The installers released so far (v0.83.1 and earlier) still pin v3.7.14. This PR is meant to merge after #1116; it will be rebased onto it then.Installer Traefik version (
/selfhosted/maintenance/configuration-files,/selfhosted/enterprise/getting-started,/selfhosted/migration/combined-container)getting-started.sh,getting-started-enterprise.shandmigrate.shhave pinned a v3.7 Traefik since v0.81.0 (v3.7.14 through v0.83.1; v3.7.18 with netbirdio/netbird#8606). The two services tables and the combined-container migration's "What's new" saidtraefik:v3.6; they now saytraefik:v3.7.18.External reverse proxy, multi-container "Example Traefik Docker Compose" (
/selfhosted/external-reverse-proxy)The example Compose file had four problems:
traefik:v3.2with noaliasHeadersStrategysettings.respondingTimeouts. With this configuration, Traefik resets each peer's Signal stream every 60 seconds, and the Management job stream about as often, so peers keep reconnecting.--api.insecure=truetogether with"8080:8080"served Traefik's API without authentication on every interface of the host.Changes:
traefik:v3.7.18. It disables the threewebsecurerespondingTimeouts, asgetting-started.shdoes, and setsaliasHeadersStrategy=deleteon both entrypoints.--api.insecureand the8080port are gone.websecure) and 6 (header handling, Traefik v3.7.18 or later) were added to the list, with the flags as command args.aliasHeadersStrategyand fail to start with it (field not found, node: aliasHeadersStrategy). That is why the version and the flags change together.Configuration files reference, Traefik service (
/selfhosted/maintenance/configuration-files)The excerpt of what
getting-started.shwrites is updated to match the installer's output (v0.83.0, with the Traefik tag from netbirdio/netbird#8606):traefik:v3.7.18;ipv4_address: 172.30.0.10network entry;--providers.docker.network=${COMPOSE_PROJECT_NAME:-}_netbird;aliasHeadersStrategy=deleteflags;respondingTimeoutsflags.The Note says what the
respondingTimeoutssettings prevent and that the installers require Traefik v3.7.13 or later foraliasHeadersStrategy(check_traefik_imageingetting-started.sh;getting-started-enterprise.sh).Local user management, "Older multi-container setup (management.json)" (
/selfhosted/identity-providers/local)The previous snippet did not work, for three reasons:
EmbeddedIdP.DataDirand a top-levelEncryptionKey, but Management has neither key.EmbeddedIdP.Issuer, without which Management exits at startup withfailed to create embedded IDP service: issuer is required.NETBIRD_EMBEDDED_IDP_*andNETBIRD_ENCRYPTION_KEYenvironment variables it listed are not read by Management.The section now opens with a Warning: it is only for a new deployment with no users yet. On a deployment that already has users from another identity provider, Management starts but the embedded identity provider has none of them, and the first-user setup page does not appear because accounts exist (
management/server/instance/manager.go,loadSetupRequired), so nobody can sign in. Those deployments are sent to the External IdP to Embedded IdP migration guide (netbird-idp-migrate). It also says the reverse proxy must route/oauth2/*to Management, where the embedded identity provider is served (idp/dex/provider.go).The section shows the fields Management uses:
DataStoreEncryptionKey, andEmbeddedIdPwithEnabled,Issuer,DashboardRedirectURIsandSessionCookieEncryptionKey. It says to add or change these keys rather than replace the file. It also documents:AUTH_*values that must match (the issuer, client ID and audiencenetbird-dashboard, and the/nb-authand/nb-silent-authredirect paths), since Management setsnetbird-dashboardas the client ID and audience (ApplyEmbeddedIdPConfig);DataStoreEncryptionKey;management.json, and exits withfailed to save config with new encryption keywhen the file is mounted read-only;SessionCookieEncryptionKey, the embedded IdP's session cookie is not encrypted;HttpConfigsection does not stop Management: its identity provider fields are overridden (management/cmd/management.go,ApplyEmbeddedIdPConfig) with the warningoverriding HttpConfig with EmbeddedIdP config, and itsLetsEncryptDomain, orCertFileandCertKey, are still used for Management's TLS (boot.go).Verified on NetBird v0.83.0 (
netbirdio/management,signalandrelayas separate containers) with Traefik 3.2.5 and 3.7.14; v3.7.18 was checked to start with the example's flags. Source references at v0.83.0:management/cmd/management.go(ApplyEmbeddedIdPConfig,EnsureEncryptionKey);management/server/idp/embedded.go(EmbeddedIdPConfig,resolveSessionCookieEncryptionKey);management/internals/server/boot.go;infrastructure_files/getting-started.shandgetting-started-enterprise.sh.No headings, URLs or file paths changed.
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