Can OpenBao be your OIDC identity provider for internal applications?
Do not assume OpenBao can issue OIDC identities to your internal applications until you have confirmed it for your version. The OpenBao auth methods documentation describes a JWT/OIDC method that accepts logins from an external OIDC source, so the documented capability runs inbound: OpenBao validates identities that come from a provider you already operate. Confirm in the documentation for the exact release you plan to deploy whether a built-in OIDC provider role exists, and ask the project or your vendor to confirm it in writing. Until that check is complete, treat the question as open and avoid drawing an architecture that depends on it.
Teams usually need OpenBao at the center of identity when the goal is access to secrets driven by who or what is asking. A workload authenticates with an identity from its platform, receives a short-lived token scoped by policy, and then reads a database credential or requests a certificate. In that model, the application's sign-in to a user interface matters less than the identity OpenBao maps to a policy. Auth methods such as Kubernetes, AppRole and JWT/OIDC answer that question for workloads without OpenBao having to manage staff passwords, enrollment or browser session flows.
You need a full identity provider when the question is how people sign in to many applications. That includes single sign-on across web apps, self-service login, multi-factor enrollment, federation with several directories, and an administration console that application owners can use without touching secrets policy. Keycloak is a useful reference point. It is an open source identity and access management server licensed under Apache 2.0, and it supports OpenID Connect, OAuth 2.0 and SAML 2.0 along with single sign-on, identity brokering, user federation and fine-grained authorization services. Its job is the login experience, which is a different job from secrets policy.
A practical test is to list what each consumer needs at sign-in. If applications need a person to log in and receive a session, plan for a dedicated identity provider and use OpenBao for the secrets those applications read afterward. If workloads need machine identity and short-lived secrets, OpenBao's auth methods may cover the need without a second system. Either way, decide who owns the user lifecycle, where multi-factor authentication is enforced, and how a departed employee's access is revoked in both systems. Those answers shape the design more than the protocol name does.
If you add Keycloak next to OpenBao, plan its operating cost now. Its supported production databases include PostgreSQL 14 to 18, MariaDB, MySQL, Microsoft SQL Server, Oracle Database and several others, and its default dev-file database is for development only. Its high availability designs require a synchronously replicated database, so the identity tier adds a database to back up, patch and monitor. Confirm the database choice, the high availability design and the upgrade approach with your team before you scope the work, because each one changes the effort and the people involved.
Which identity source fits each OpenBao OIDC use case
This table compares three ways to source identities for OpenBao OIDC use cases: an external OIDC provider used through JWT/OIDC auth, OpenBao acting as an OIDC issuer, and Keycloak as a dedicated provider that OpenBao consumes. Read each column for where identities live, what your application team builds, and which protocols and features are documented. The main takeaway is that your existing identity source usually decides the choice, and the issuer option should be confirmed against the documentation for your OpenBao version before you rely on it.
| Question | JWT/OIDC auth with an external provider | OpenBao as an OIDC issuer | Keycloak with OpenBao as a consumer |
|---|---|---|---|
| Where user identities live | In the external OIDC provider that already authenticates your staff | In the identity configuration OpenBao holds; confirm the model for your version | In Keycloak realms, optionally federated from existing directories |
| What the application team builds | Role configuration in OpenBao with bound claims, and a login flow that obtains tokens from the provider | Client registration and token validation against OpenBao-issued tokens; confirm the documented flow | Keycloak clients, redirect URIs and claim mappings, plus the matching OpenBao JWT/OIDC role |
| Protocols and features documented | JWT/OIDC auth method in the OpenBao auth methods documentation | Confirm which OIDC endpoints and token features the version in use documents | OpenID Connect, OAuth 2.0 and SAML 2.0, with single sign-on, brokering, federation and authorization services |
| Main reason to choose it | Your identity provider stays the source of truth and OpenBao only verifies sign-in | Possibly the smallest footprint if OpenBao is the only identity system in scope, once confirmed | You need a dedicated identity provider for many applications, SAML, or brokering to other providers |
| Operating footprint | No new identity service; OpenBao logins depend on provider availability | Runs inside the OpenBao cluster; confirm its availability and scaling behavior | A separate service with its own high availability design and a synchronously replicated database |
| Upgrade and support | Follows the normal OpenBao upgrade path plus the provider's own release cycle | Confirm version-specific behavior in the OpenBao upgrade notes before adopting | Four minor releases a year since 26.0, with operator updates set to manual approval |
| Questions to answer first | Which claims does the provider expose, and who owns the role mappings? | Does the version in use document an OIDC issuer, and does it cover your client needs? | Do you need a dedicated provider, and who will run its database and upgrades? |
How OpenBao's JWT/OIDC auth method validates logins
The JWT/OIDC auth method lets a client present an identity token issued by an OIDC source, then asks OpenBao to decide whether that token earns an OpenBao token. OpenBao does not treat the incoming token as a secret to pass along. It checks the token against the trust settings you configure on the auth method, such as the issuer and the keys used to verify the token's signature, and it rejects tokens that fail those checks. The exact validation steps depend on how the method is configured and on your OpenBao version, so confirm the current sequence in the OpenBao auth methods documentation before you design your trust settings.
After a token passes validation, the method maps its claims to a role. A role is the point where you decide who gets access. Role parameters determine which claims must match, which claim supplies the identity name OpenBao records, and which policies are attached to the token it issues. Map roles on stable identifiers such as a subject or group claim. Display names and email addresses are easier to change and easier to reuse, so they make weaker keys for access decisions. Confirm the claim mapping and role parameter names in the docs for your version, because they are the main control that limits what a login can reach.
The method sits alongside the other documented auth methods, including AppRole, Kubernetes, LDAP, TLS certificates, Userpass, tokens, and login MFA. OpenBao recommends Userpass for developer machines and AppRole for servers, so JWT/OIDC is usually the choice when people sign in through an identity source your organization already runs. Whether to use it for automated workloads, such as CI jobs that present OIDC tokens, is a separate decision. Check the AppRole and JWT/OIDC guidance side by side before you assign each population to a method, and record the reason for each choice.
Before you rely on the method in production, run a test against a non-production identity source. Confirm that a valid token from each expected group receives the intended policies, that tokens from other issuers or with missing claims are refused, and that the token lifetime matches your session policy. Keep the role definitions in version control so changes are reviewed. If your identity source is a dedicated provider such as Keycloak, check that its token claims contain the values your roles expect before you write the mappings.
When Keycloak is the better OIDC identity provider
OpenBao's built-in OIDC provider suits workloads that already authenticate through OpenBao. Keycloak fits when the identity service must serve many applications across protocols, with its own sign-in experience, federation and administration. The cards below list the factors that separate the two.
Protocol coverage across standards
Keycloak supports OpenID Connect, OAuth 2.0 and SAML 2.0. If your applications include SAML service providers alongside OIDC clients, a single Keycloak deployment covers both, while an OpenBao-issued OIDC setup covers only the OIDC side. Inventory every application's protocol before deciding, and confirm which of them your team must integrate directly.
Single sign-on for many applications
Keycloak provides single sign-on so a user signs in once and moves across many applications without repeated prompts. This matters when the goal is workforce sign-in for business tools, not only machine access to secrets. List how many applications need interactive user sign-in, how often their sessions must be shared, and which ones need logout propagation.
Identity brokering to external providers
Keycloak can broker sign-in to upstream identity providers, so users authenticate with a corporate directory or partner identity source and Keycloak issues tokens to your applications. Check which upstream providers you must trust, how claims map to application roles, and who owns the trust relationship when a partner changes its configuration.
User federation with existing directories
Keycloak can federate users from directories such as LDAP or Active Directory and keep them as the source of truth for credentials and group membership. OpenBao identities are managed inside OpenBao. Confirm where user records live today, which attributes applications need, and whether password policy and account lockout must stay in the existing directory.
Admin console for identity administration
Keycloak includes an admin console for realms, clients, users, roles and events, which lets identity administrators work without editing configuration files for routine changes. Decide who will hold realm administration rights, how changes are reviewed, and whether those administrators need an audit trail beyond what the console records.
Fine-grained authorization services
Keycloak offers fine-grained authorization services for defining resources, scopes and policies that protected applications evaluate. Use this when access decisions depend on more than a token's roles. Document which decisions stay in the application, which move into Keycloak policies, and how policy changes are tested before release.
Apache 2.0 licensing and CNCF incubating status
Keycloak is licensed under Apache 2.0 and is a Cloud Native Computing Foundation incubating project. OpenBao is licensed under MPL-2.0 and is a Sandbox project of OpenSSF. Have legal review both licenses against your distribution and modification plans, and confirm which project maturity level your governance policy accepts for identity infrastructure.
Who runs and supports the identity service
Keycloak is available as the community project and as the Red Hat build of Keycloak, Red Hat's supported distribution that replaces Red Hat Single Sign-On. Choosing between them depends on who operates the service, who answers security patches and who carries support obligations. Confirm the support model, patch cadence and upgrade responsibilities in writing before choosing the distribution.
How to set up OIDC login through OpenBao, step by step
This sequence takes an OpenBao test cluster from version confirmation to one application signing in through OIDC, then to a controlled rollout. Each step closes with a check you can run and record, so a misconfigured claim or policy is caught before production users depend on it.
Confirm the version and documented OIDC coverage
Your platform or security team confirms the OpenBao version you will run, using the release notes on the project's GitHub releases page, and checks the auth methods documentation for the OIDC and JWT login flow you intend to use. The documented auth methods include JWT/OIDC and login MFA, but you should verify that the exact capability in your design is covered for that version before you build on it. Record the version, the doc page you relied on, and any gaps. The output is a short written note that the team signs off before any build work starts.
Deploy a test cluster with matching configuration
The platform team deploys a non-production OpenBao cluster in the infrastructure you control, using the storage backend and high availability design you plan to use in production. Confirm the configuration against the migration and storage documentation, including any settings that were removed in recent major releases. Check that the cluster initializes, unseals, and reports healthy on every node. The check is a clean health status on all nodes and a successful login with a root-level administrative identity that you revoke once the test is complete.
Configure the external OIDC source and trust
The identity team registers OpenBao as a client in your OIDC provider and the platform team configures the matching JWT/OIDC auth method in OpenBao. Set the issuer URL, the expected audience, the allowed redirect URLs, and the signing key discovery settings, using the exact parameter names from the auth methods documentation. Confirm the trust settings by reading the discovery document from the issuer and checking that OpenBao fetches the signing keys. The check is a successful test login that returns an OpenBao token for a known test user, with the issuer and audience visible in the audit record.
Define roles with claim bindings
The platform team creates one OIDC role per application or access group and binds each role to the claims it accepts, such as group membership, a tenant identifier, or an application audience. Each role also sets the user claim used to name the token and the token lifetime, which should be short. Confirm exact claim binding field names in the auth methods documentation for your version. The check is a login with a user who holds the expected group succeeding, and a login with a user who lacks it being refused with a clear error in the audit log.
Attach least-privilege policies to each role
The security team writes one policy per role that grants only the paths the application needs, such as reading a single key/value path or requesting one dynamic credential type. Avoid wildcard paths and broad capabilities, and review each policy against the application's documented secret usage. Confirm capability names and path syntax in the policy documentation. The check is a test token from a restricted role that can read its own path and is denied on a neighboring path, which you should record as evidence for the access review.
Enable login MFA where your policy requires it
Where your access policy requires a second factor for administrative or sensitive roles, the identity team enables login MFA on the relevant auth method and binds it to those roles only. Confirm the supported MFA providers and the enforcement settings for your OpenBao version in the documentation, and test each provider your organization intends to use. The check is a login attempt without the second factor being refused, and a login with it succeeding, for both an administrator and a standard user. Keep the MFA configuration in version control with the other auth settings.
Test with one application end to end
The application owner and the platform team connect one internal application to the test cluster, using a single role and a single policy. The test covers the full path: sign-in through the identity provider, token issuance, reading the application's secret, token expiry, and logout or revocation behavior. Run one negative test with a user whose claims should fail, and check that the request is refused and logged. The output is a written test record with the audit log entries attached, which the owner signs off before the rollout begins.
Roll out roles and applications in batches
The platform team moves the configuration to production through your normal change process, then adds applications in batches, each with its own role, policy, and test record. Monitor audit logs and authentication errors after each batch, and pause if refusals spike or unexpected identities appear. Confirm that the production cluster uses the same settings as the test cluster, and that backups and the recovery procedure cover the auth configuration. The check is a completed batch with no unexplained refusals and an updated inventory of roles, claims, and policies.
Running OpenBao and Keycloak highly available under login traffic
The first decision is whether OpenBao sits in the login path at all, because every OIDC authorization and token request then depends on it. OpenBao's high availability model uses one active node that holds a lock in the data store. Standby nodes either forward requests to the active node or redirect clients to it, so only one node handles writes at a time. The officially supported HA backends are integrated storage using Raft and PostgreSQL. Since OpenBao 2.5.0, Raft standbys can serve read-only operations, and 2.7.0 extended this to PostgreSQL, which allows standbys to absorb read traffic. Confirm which operations your OIDC clients and token validation flows actually send, because anything that writes still goes through the active node.
Choosing between Raft and PostgreSQL is an operations decision as much as a technical one. The storage documentation describes PostgreSQL as easier to operate safely than Raft, which matters most if your team already runs PostgreSQL with tested backups, failover and monitoring. Raft keeps the cluster self-contained, but your team then owns peer management, snapshots and recovery of the Raft quorum. Whichever backend you choose, test the loss of the active node and a full restore before go-live, and record who performs each step. Confirm the failover behavior for the exact OpenBao version you plan to deploy, since the read-scaling features differ by minor release.
Keycloak documents three high availability architectures. The first is a single cluster, optionally spread across availability zones. The second is multi-cluster deployment (v2), which does not use an external Infinispan cluster. The third is multi-cluster v1, which used a separate Infinispan cluster per site and is deprecated, so it should not be the starting point for a new design. Both supported designs require a synchronously replicated database. The supported production databases are MariaDB, Microsoft SQL Server, MySQL, Oracle Database, PostgreSQL (versions 14 to 18), EnterpriseDB Advanced, Amazon Aurora PostgreSQL and Azure SQL. The default development file database is for development only and cannot carry login traffic.
Confirm the topology against your availability targets before you choose hardware or regions. No uptime figure or service level commitment comes from the software alone. It depends on your architecture, your database replication mode, your failover runbooks and the staff available for incidents. Ask whether the synchronous replication you need across sites is available in your chosen database product, and what it adds to write latency under login load. Size for login bursts, including token refresh traffic, and test failover of both OpenBao and the Keycloak database under representative load before users depend on either.
Security considerations for trusting or issuing OIDC identities
Running OpenBao as an OIDC provider or consuming identities from an upstream issuer moves trust decisions into secrets infrastructure. The cards below name the design choices and checks that connect key handling, token lifetimes, MFA, roles, audit and claim validation, and each one needs an owner and a test before go-live.
Encryption keys and bootstrap secrets
OpenBao encrypts secrets before they reach the storage backend, so the team must decide who holds the unseal material and how it is split and stored. The Keycloak Operator, database connections and OIDC client secrets all need credentials that must be supplied at startup. Design where each bootstrap value lives, who can read it and how it rotates, then inspect the raw storage backend to confirm no plaintext secret is present.
Leases and automatic revocation
Tokens and dynamic credentials issued through OpenBao carry leases that expire and can be revoked, individually or in bulk. For an OIDC provider, decide how long issued identities and their dependent credentials should live, and which applications must renew them. Test revocation by removing a role or identity and confirming that dependent database users and active sessions stop working. Set lease values from your own risk assessment rather than accepting defaults unreviewed.
Login MFA for identity access
OpenBao documents login MFA among its auth features, but whether it applies depends on the auth method you choose and how it is configured. Decide which human users and roles must complete a second factor, and whether service identities are exempt. Confirm the exact enforcement behavior for your chosen method and OpenBao version in the documentation, then run a failed-login test before go-live.
Least-privilege roles and admin separation
Scope each OIDC role and entity to the paths and claims its application needs, and put policy changes through review. Keep the administrators who manage identities and clients separate from those who manage secrets engines and policies, so one person cannot both mint identities and read the secrets those identities unlock. Verify with a policy review and by attempting a cross-boundary action from each administrative role.
Audit devices and logging
Audit logging records requests and responses, and the audit device you choose determines where those records go and how the system behaves if a device fails. Plan more than one audit device so a single device failure does not block requests, and decide how sensitive values are hashed before logs reach a SIEM. Verify by triggering a token issuance and a failed login, then confirming both events arrive in your log store with the fields your investigations need.
Claim validation and upstream issuer trust
When OpenBao consumes identities from an upstream issuer such as Keycloak, it trusts that issuer's signed tokens and the claims inside them. Define the expected issuer, audience, subject and group claims, and reject tokens whose claims do not match the role binding. Confirm discovery URLs and signing key rotation with the issuer's operators, then test with tokens that have a wrong audience or missing groups.
Keeping OpenBao and Keycloak upgrades from breaking logins
Every OpenBao or Keycloak upgrade can change the path a user or service takes to sign in, so treat each version change as a change to your login flow and test it before production. For OpenBao, the current releases are v2.7.0, published September 23, 2026, and v2.7.1, published October 1, 2026. On the same day as v2.7.1, the project released v2.6.4 for the previous minor line. If you run the 2.6 line, decide deliberately whether to stay there for a while or move to 2.7, and read the release notes for both versions before you choose a target. Confirm which line each environment runs, because staging and production often drift apart on minor versions.
If your OpenBao cluster came from HashiCorp Vault, the migration guide is the first document to check. It describes replacing the Vault server process with OpenBao on all nodes, with configuration, endpoints and URLs unchanged, which keeps your OIDC issuer URL and client registrations stable when the replacement works as described. The guide states that this replacement was tested only against Vault 1.14.1 community edition, and it does not cover Vault Enterprise. Confirm your source version and edition before you rely on that path. If your Vault version or edition differs, treat the OIDC provider as untested in your environment and validate it end to end in staging. Also confirm that disable_mlock has been removed from the configuration, because OpenBao stopped using mlock in 2.0.0.
Keycloak has followed a faster release rhythm since 26.0. The project plans four minor releases a year and a major release every two to three years, and it states that breaking changes in a minor release will be opt-in. That policy reduces the chance that a routine minor upgrade changes login behavior on its own, but it does not remove the need to review each release. An opt-in change still needs an owner who decides whether to enable it. The current release is 26.8.1, published October 13, 2026. Read the backwards compatibility notes for every minor version between your current release and your target, list each opt-in change, and record the decision with the upgrade ticket.
If you run Keycloak on Kubernetes with the Keycloak Operator, the Operator documentation strongly recommends manual approval mode for operator updates to avoid unintended automatic upgrades. Keep that setting and pair each approved update with a staging run. For the database, Keycloak migrates its schema automatically at startup by default, and administrators can instead apply the migration SQL themselves, which the upgrading guide suggests for large deployments. Choose the mode before the upgrade window. Automatic migration is simpler for smaller estates, while manual migration lets a database team review the SQL, schedule it, and hold a tested restore point. Both supported high availability designs require a synchronously replicated database, so confirm that before any schema change.
Before each upgrade, run login flows in a staging environment built from production configuration, including the same realm or tenant settings, client definitions, federation sources and certificates. For OpenBao, test each OIDC client's authorization code flow, token refresh, logout, any MFA prompt, and each service that validates tokens against the issuer. For Keycloak, cover single sign-on into each application, identity brokering to external providers, a user from each federation source, and a service account token request. Check issuer values, redirect URIs, signing keys and token claims against what each relying party expects. Write pass and fail criteria before the test, record the results, and base the production go or no-go decision on that record. Keep the rollback path ready until the upgrade has been stable for an agreed period.
Limits to confirm before you commit to an OpenBao OIDC design
OpenBao's OIDC design depends on capabilities that vary by version, configuration and edition. The cards below list what to confirm with the vendor and in your own environment before you approve the identity flow.
Issuer capability in your version
Confirm that the OpenBao release you plan to run includes an OIDC issuer that applications can use to authenticate users. The JWT/OIDC auth method lets OpenBao accept tokens from an external provider, which is a different capability, so check the release notes for your exact version. Include the v2.7.0 line released September 23, 2026 in that review, and test the discovery and token endpoints in a staging cluster before the design is approved.
OIDC and claim features
The JWT/OIDC method is documented, but your applications need specific features: signing algorithms, token lifetimes, refresh behavior, client authentication methods, PKCE support, discovery metadata and custom claims that carry group or role data. Ask the vendor for a feature matrix mapped to your application list. Test every claim your applications read, and confirm how claim changes affect sessions that are already active.
User lifecycle and deprovisioning
Identities must be created, changed and removed through a defined process. Confirm the source of truth, whether that is an HR system, a directory or manual entry, and how a disabled user loses access. Measure how quickly existing tokens stop working after removal, and confirm that revocation reaches tokens issued through the OIDC flow. Lease revocation is documented, so verify its coverage for each token type in your design.
Application protocol support
List every application that will sign in through OpenBao and record the protocol and client settings each one requires. Some applications need SAML, LDAP bind or specific OIDC client authentication methods, and some expect group claims in a particular format. Check each application's documentation and test with a non-production instance. Applications that cannot meet these requirements may need a separate identity provider, such as Keycloak, running alongside OpenBao.
Enterprise feature dependency
OpenBao's migration guide was tested only against Vault 1.14.1 community edition, and Vault Enterprise was outside that test. If your current cluster uses Vault Enterprise features, identify each one and confirm whether OpenBao provides an equivalent before you finalize the identity design. Ask the vendor whether any enterprise-only auth, policy or replication behavior is in use. Treat each untested path as an open item with its own test plan.
Operating capacity for identity
Running OpenBao as an identity provider adds duties: highly available storage, key handling, upgrades across minor releases, audit logging and signing key rotation. Assess whether your team can own these tasks on a schedule and during incidents. OpenBao's HA documentation lists integrated storage (Raft) and PostgreSQL as supported HA backends, and describes PostgreSQL as easier to operate safely. Name the on-call owner for identity outages before go-live.
What does an OpenBao OIDC login or Keycloak rollout involve?
What drives the cost and effort of an OpenBao OIDC or Keycloak rollout?
The main drivers are the number of applications that will sign in, the identity sources that hold users and groups, the high availability topology, the protocols each application needs, and the operator and database work behind them. Each application needs a client definition, redirect URIs, claim mapping and testing, so the application count sets much of the build effort. Identity sources such as directories or existing SAML providers add connector work and attribute cleanup. An HA design adds node layout, load balancing and a database that can support replication. Operations work covers upgrades, backups, monitoring and on-call coverage. Database choice matters: Keycloak publishes a list of supported production databases, and OpenBao documents integrated storage and PostgreSQL as its supported HA backends. Ask for a quote that itemizes these items, separates one-time build work from recurring support, and lists what the client must provide.
How long does an OpenBao or Keycloak identity rollout take?
The duration depends on the agreed scope, and no duration is given here. The timeline is set in a written scope before work starts, listing the applications, identity sources, environments and deliverables. Timing moves most when application owners are slow to confirm redirect URIs and claims, when access to identity sources takes time to approve, or when change windows are limited. A pilot with one or two applications usually surfaces integration issues early, which helps plan the wider rollout. Ask for milestones tied to deliverables, the client actions each milestone depends on, and the staging and production change windows assumed in the plan. Confirm with your own change board how long approvals take, since that often sets the calendar more than engineering effort does.
What does the client need to provide for an identity rollout?
Plan to provide four kinds of input: access to identity sources, named application owners, change windows, and a sign-off authority. Identity source access usually means read-only service accounts or bind credentials for a directory, or details of an existing SAML or OIDC provider, along with documentation of attribute and group structures. Application owners confirm login flows, redirect URIs, scopes, claims and test accounts for each application. Change windows cover staging and production cutovers, including a rollback plan for each one. Sign-off should name who approves the design, the security controls and go-live. Your infrastructure also has to host the clusters, load balancers, database, backup targets and monitoring access. Ask any partner to list these inputs in the written scope so gaps appear before the build starts.
Can our internal team run an OpenBao OIDC or Keycloak rollout alone?
Yes, if your team already operates identity, Kubernetes or Linux platforms and has time for the build. The harder parts are usually the ones a team has not done before: configuring OIDC clients for each application, mapping claims, operating a clustered identity service and rehearsing upgrades. Keycloak documents a Kubernetes operator and recommends manual approval mode for operator updates to avoid unintended upgrades. Its database schema migrates automatically at startup by default, which the team must plan for or switch to manual migration. OpenBao also needs decisions on storage and HA before go-live. Assess whether you have people who can own the service afterward, because an identity provider sits in the sign-in path of every application. A partner can take on part of the work, such as design review or testing, while your team keeps operational ownership.
How do we choose between OpenBao and Keycloak for OIDC sign-in?
Choose OpenBao when the main need is identity for workloads and operators that already depend on it for secrets, dynamic credentials or PKI. Choose Keycloak when you need a full identity provider for many user-facing applications. OpenBao is open source under the MPL-2.0 license and documents JWT and OIDC auth methods alongside its secrets features. Keycloak is open source under Apache 2.0 and supports OpenID Connect, OAuth 2.0 and SAML 2.0, with single sign-on, identity brokering, user federation, an admin console and fine-grained authorization. If applications need SAML, federation with existing directories or self-service user administration, Keycloak usually covers more of that scope. Confirm the provider features in the version you plan to deploy, and list the protocols and user flows each application needs before deciding. Some organizations run both, each in its own role.
What breaks most often during an OIDC rollout and how do we catch it?
The most common failures are mismatched redirect URIs, missing or incorrectly mapped claims, token lifetime and clock problems, and group-to-role mappings that grant too much or too little access. Catch them with a test matrix per application covering login, logout, token refresh, role checks and denied access. Test with real accounts from your identity sources in staging, not only with synthetic users. Confirm that signing keys rotate as planned and that each application validates issuer and audience correctly. For Keycloak, watch metrics and database latency during load tests. For OpenBao, verify active and standby node behavior and test a backup restore before go-live. Keep a rollback path for each application so one broken client does not block the others. Store the test results as evidence for change approval and later audits.
Who operates the identity service after the rollout is complete?
Either your team or a retainer partner owns it, and that decision should be made before the build starts. Ongoing work includes applying Keycloak minor releases, which the project plans four times a year, and reviewing its upgrade notes, since breaking changes in minor releases are opt-in. Operations also covers backups and restore tests, certificate and signing key rotation, monitoring, access reviews and incident response. OpenBao upgrades need a plan for storage, HA nodes and any version-specific changes. Ask a partner to define the support scope in writing, including response expectations, the change process and what upgrades include. DeployOpen offers ongoing support, upgrades and continuous testing as retainers, so request a retainer quote alongside the build quote.
How DeployOpen scopes, delivers and supports OpenBao identity work
DeployOpen plans and builds OpenBao as an OIDC identity provider inside your own infrastructure, starting from the applications and services that need to sign in. We check whether OpenBao's built-in provider fits your client types and login needs, or whether a dedicated identity provider such as Keycloak is the better fit, before any build starts.
How we scope
- The written scope lists each application that will sign in through OpenBao, with its client type and redirect URIs.
- Scope records the identity sources, MFA expectations and token lifetimes that OpenBao must honor for each consumer.
- Engagements are fixed-scope, with deliverables and timelines agreed in writing before work starts.
How we build
- Build sequence covers the storage backend and high availability design first, then auth configuration, then client onboarding.
- Token issuance, client registration and claim mapping are tested against each application's login and logout flows.
- Hardening covers TLS, audit device setup, policy scope and storage access controls for the identity cluster.
How we hand over
- Handover documents the configured clients, claim mappings, policies, backup and restore steps, and upgrade procedure.
- Your team receives runbooks for onboarding a new application, rotating signing keys and responding to a failed login spike.
- Restore steps are tested in a test environment before handover is signed off.
How we support
- Ongoing support, upgrades and continuous testing are available as retainers, scoped in writing.
- Upgrade planning follows OpenBao's release notes and covers the OIDC-related settings each new version touches.
- Dependency changes for the identity provider are tracked separately from OpenBao upgrades.
