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(DOCSP-21078) X509 and SCRAM for multi-cluster (#880)
* (DOCSP-21078) X509 and SCRAM for multi-cluster * Periodic commit, to check that the stuff is still building correctly * Periodic commit, to check that the stuff is still building correctly * Figuring things out, to be continued * Periodic commit * Periodic commit * Periodic commit * Fixing warnings * Getting ready for review * Fixing build errors * Fixing the build * Trying to fix the inheritance error * Fixing steps * Fixing step refs * Edits, getting ready for a review. Build is clean. * Address review feedback * Added noprevnext, ready for a copy review * Address copy review comments from John W, rearchitect how SCRAM is mentioned * Fixing a build warning. Ready for the final tech review. * Some more edits. Ready for the final tech review.
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‎source/includes/facts/fact-can-change-secret-storage-tool.rst

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This |k8s| |k8s-secret|, along with other |k8s-secrets| that |k8s-op-short|
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creates, can later be migrated to a different :ref:`secret storage tool <k8s-set-secret-storage-tool>`
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to avoid storing secrets in |k8s|.
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.. note::
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To avoid storing secrets in |k8s|, you can migrate all |k8s-secrets|
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to a :ref:`secret storage tool <k8s-set-secret-storage-tool>`.

‎source/includes/prereqs-secure-resource-x509-multi-cluster.rst

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Enabling X.509 authentication at the project level configures all
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agents to use X.509 client authentication when communicating with
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MongoDB deployments.
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X.509 client authentication requires one of the following:
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- |cloud-short|
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- |onprem| 5.0.7 or later

‎source/includes/prereqs/custom-ca-prereqs-multi-cluster-rs-tls-only.rst

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- Generate one |tls| certificate for a ``MongoDBMulti`` resource.
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For each |k8s| service corresponding to each Pod in each member cluster,
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add |san-dns|\s to the certificate.
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In your |tls| certificate, the |san-dns| for each |k8s| service must
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- To enable internal cluster authentication, create certificates for
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member clusters in the |multi-cluster|.
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- Generate one |tls| certificate covering the |san-dns|\s of all the member
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clusters in the ``MongoDBMulti`` resource.
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- For each |k8s| service that the |k8s-op-short| generates corresponding
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to each Pod in each member cluster, add |san-dns|\s to the certificate.
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In your |tls| certificate, the |san-dns| for each |k8s| service must
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use the following format:
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.. include:: /includes/prereqs/san-format-multi-cluster.rst
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You must possess the |certauth| certificate and the key that you used
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to sign your |tls| certificates.
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- Generate one TLS certificate for your project's MongoDB Agents.
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.. include:: /includes/prereqs/mdbagent-reqs-multi-cluster.rst
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- You must possess the |certauth| certificate and the key that you used to
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sign your |tls| certificates.
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.. include:: /includes/prereqs/pem-format.rst

‎source/includes/prereqs/mdbagent-reqs-multi-cluster.rst

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- For the MongoDB Agent |tls| certificate:
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- The Common Name in the |tls| certificate must not be empty.
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- The combined Organization and Organizational Unit in each |tls|
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certificate must differ from the Organization and Organizational
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Unit in the |tls| certificate for your replica set members.

‎source/includes/prereqs/san-format-multi-cluster.rst

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<metadata.name>-<member_cluster_index>-<n>-svc.<namespace>.svc.cluster.local
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where ``n`` ranges from ``0`` to ``clusterSpecList[member_cluster_index].members - 1``.
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‎source/includes/steps-add-database-user-scram.yaml

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* - ``spec.mongodbResourceRef.name``
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- string
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- Name of the :ref:`MongoDB resource <k8s-deploy-mdb-resources>` to
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which this user is associated.
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- Name of the :ref:`MongoDB resource <k8s-deploy-mdb-resources>`
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this user is associated with.
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- ``my-resource``
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* - ``spec.roles.db``

‎source/includes/steps-deploy-k8s-multi-cluster-rs-tls-custom-renew.yaml

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---
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stepnum: 1
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ref: renew-k8s-rs-tls-secret
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ref: renew-k8s-rs-secret-tls
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source:
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file: steps-multi-cluster-source.yaml
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ref: renew-mc-rs-tls-secret

‎source/includes/steps-deploy-k8s-multi-cluster-rs-tls-custom.yaml

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---
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stepnum: 1
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ref: create-k8s-mc-rs-tls-secret
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title: "Create the secret for the TLS certificate of your ``MongoDBMulti`` custom resource."
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level: 4
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content: |
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Run the ``kubectl`` command to create a new secret that stores the
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MongoDB multi-cluster resource's certificate:
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.. code-block:: sh
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kubectl --context $MDB_CENTRAL_CLUSTER_FULL_NAME \
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--namespace=<metadata.namespace> \
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create secret tls <prefix>-<metadata.name>-cert \
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--cert=<resource-tls-cert> \
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--key=<resource-tls-key>
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source:
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file: steps-multi-cluster-source.yaml
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ref: create-k8s-mc-tls-secret
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---
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stepnum: 2
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title: "Create the ConfigMap to link your CA with your ``MongoDBMulti`` custom resource."
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level: 4
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content: |
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Run the ``kubectl`` command to link your |certauth| to your ``MongoDBMulti`` custom resource:
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.. code-block:: sh
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kubectl --context $MDB_CENTRAL_CLUSTER_FULL_NAME \
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--namespace=<metadata.namespace> \
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create configmap custom-ca -from-file=ca-pem
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source:
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file: steps-multi-cluster-source.yaml
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ref: create-k8s-mc-tls-configmap
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---
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stepnum: 3
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ref: update-mongodbmulti-resource
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title: "Update your ``MongoDBMulti`` custom resource."

‎source/includes/steps-deploy-k8s-multi-cluster-rs-x509-custom-renew.yaml

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---
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stepnum: 1
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ref: renew-tls-secret
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source:
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file: steps-multi-cluster-source.yaml
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ref: renew-mc-rs-tls-secret
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---
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stepnum: 2
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ref: renew-multi-cluster-secret-x509-agent
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source:
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file: steps-multi-cluster-source.yaml
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ref: renew-mc-secret-x509-agent
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...

‎source/includes/steps-deploy-k8s-multi-cluster-rs-x509-custom.yaml

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---
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stepnum: 1
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ref: create-mc-rs-tls-secret
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source:
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file: steps-multi-cluster-source.yaml
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ref: create-k8s-mc-tls-secret
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---
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stepnum: 2
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ref: create-multi-cluster-agent-secret-x509
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source:
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file: steps-multi-cluster-source.yaml
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ref: create-mc-agent-secret-x509
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---
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stepnum: 3
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ref: create-k8s-mc-rs-tls-configmap
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source:
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file: steps-multi-cluster-source.yaml
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ref: create-k8s-mc-tls-configmap
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---
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stepnum: 4
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ref: update-mongodbmulti-resource-x509
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title: "Update your ``MongoDBMulti`` custom resource to enable X509 authentication."
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level: 4
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content: |
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:ref:`Update your MongoDB multi-cluster resource <k8s-edit-database-resource>`
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with :ref:`security settings <security-settings>` from the |k8s-op-short|
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MongoDB resource specification. The resulting configuration should look as
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follows:
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.. code-block:: yaml
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apiVersion: mongodb.com/v1
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kind: MongoDBMulti
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metadata:
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name: multi-replica-set
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spec:
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version: 4.4.0-ent
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type: ReplicaSet
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persistent: false
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duplicateServiceObjects: true
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credentials: my-credentials
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opsManager:
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configMapRef:
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name: my-project
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security:
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tls:
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ca: custom-ca
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certsSecretPrefix: <prefix>
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authentication:
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enabled: true
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modes: ["X509"]
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agents:
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mode: "X509"
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clusterSpecList:
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clusterSpecs:
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- clusterName: ${MDB_CLUSTER_1_FULL_NAME}
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members: 3
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- clusterName: ${MDB_CLUSTER_2_FULL_NAME}
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members: 2
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- clusterName: ${MDB_CLUSTER_3_FULL_NAME}
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members: 3
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The |k8s-op-short| copies the ConfigMap with the |certauth| created in
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the central cluster to each member cluster, generates a concatenated
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|pem| secret, and distributes it to the member clusters.
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---
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stepnum: 5
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level: 4
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ref: verify-mc-resources-tls
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source:
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file: steps-multi-cluster-source.yaml
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ref: verify-mdb-resources-mc
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...

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