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Troy McConaghy 2017-06-08 17:36:41 +02:00
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docs/server/source/production-deployment-template/node-on-kubernetes.rst
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@ -9,8 +9,8 @@ It assumes you already have a running Kubernetes cluster.
If you want to add a new BigchainDB node to an existing BigchainDB cluster,
refer to :doc:`the page about that <add-node-on-kubernetes>`.
We refer to many files by their directory and filename in the documentation
below, such as ``configuration/config-map.yaml``. Those files are files in the
Below, we refer to many files by their directory and filename,
such as ``configuration/config-map.yaml``. Those files are files in the
`bigchaindb/bigchaindb repository on GitHub
<https://github.com/bigchaindb/bigchaindb/>`_ in the ``k8s/`` directory.
Make sure you're getting those files from the appropriate Git branch on
@ -26,23 +26,9 @@ If you don't already have it installed,
then see the `Kubernetes docs to install it
<https://kubernetes.io/docs/user-guide/prereqs/>`_.
The default location of the kubectl configuration file is ``~/.kube/config``.
If you don't have that file, then you need to get it.
Find out the ``kubectl context`` of your Kubernetes cluster using the command:
.. code:: bash
$ kubectl config view
The context will be one of the entries in ``context.cluster`` under the
``contexts`` list in the output.
Assuming that the current context for your cluster is
``k8s-bdb-test-cluster-0``, you will always specify the context in the
following commands as ``kubectl --context k8s-bdb-test-cluster-0``.
**Azure.** If you deployed your Kubernetes cluster on Azure
using the Azure CLI 2.0 (as per :doc:`our template <template-kubernetes-azure>`),
then you can get the ``~/.kube/config`` file using:
@ -59,29 +45,63 @@ but you get an error message,
then try adding ``--ssh-key-file ~/.ssh/<name>``
to the above command (i.e. the path to the private key).
.. note::
Step 2: Connect to the Cluster UI - (optional)
----------------------------------------------
**About kubectl contexts.** You might manage several
Kubernetes clusters. To make it easy to switch from one to another,
kubectl has a notion of "contexts," e.g. the context for cluster 1 or
the context for cluster 2. To find out the current context, do:
* Get the kubectl context for this cluster using ``kubectl config view``.
* For the above commands, the context would be ``k8s-bdb-test-cluster-0``.
.. code:: bash
.. code:: bash
$ kubectl config view
$ kubectl --context k8s-bdb-test-cluster-0 proxy -p 8001
and then look for the ``current-context`` in the output.
The output also lists all clusters, contexts and users.
(You might have only one of each.)
You can switch to a different context using:
.. code:: bash
$ kubectl config use-context <new-context-name>
You can also switch to a different context for just one command
by inserting ``--context <context-name>`` into any kubectl command.
For example:
.. code:: bash
$ kubectl --context k8s-bdb-test-cluster-0 get pods
will get a list of the pods in the Kubernetes cluster associated
with the context named ``k8s-bdb-test-cluster-0``.
Step 2: Connect to Your Cluster's Web UI (Optional)
---------------------------------------------------
You can connect to your cluster's
`Kubernetes Dashboard <https://kubernetes.io/docs/tasks/access-application-cluster/web-ui-dashboard/>`_
(also called the Web UI) using:
.. code:: bash
$ kubectl proxy -p 8001
or, if you prefer to be explicit about the context (explained above):
.. code:: bash
$ kubectl --context k8s-bdb-test-cluster-0 proxy -p 8001
The output should be something like ``Starting to serve on 127.0.0.1:8001``.
That means you can visit the dashboard in your web browser at
`http://127.0.0.1:8001/ui <http://127.0.0.1:8001/ui>`_.
Step 3: Configure the Node
--------------------------
* You need to have all the information :ref:`listed here <Things Each Node Operator Must Do>`.
Step 3: Configure Your BigchainDB Node
--------------------------------------
* The information needs to be populated in ``configuration/config-map.yaml``
and ``configuration/secret.yaml``.
* For more details, refer to the document on how to
:ref:`configure a node <Configure the Node>`.
See the page titled :ref:`How to Configure Your BigchainDB Node`.
Step 4: Start the NGINX Service
@ -164,13 +184,11 @@ Step 5: Assign DNS Name to the NGINX Public IP
**Set up DNS mapping in Azure.**
Select the current Azure resource group and look for the ``Public IP``
resource. You should see at least 2 entries there - one for the Kubernetes
master and the other for the MongoDB instance. You may have to ``Refresh`` the
Azure web page listing the resources in a resource group for the latest
changes to be reflected.
Select the ``Public IP`` resource that is attached to your service (it should
have the Azure DNS prefix name along with a long random string, without the
``master-ip`` string), select ``Configuration``, add the DNS assigned above
@ -335,7 +353,6 @@ see `the Kubernetes docs about persistent volumes
The first thing to do is create the Kubernetes storage classes.
**Set up Storage Classes in Azure.**
First, you need an Azure storage account.
If you deployed your Kubernetes cluster on Azure
using the Azure CLI 2.0
@ -467,7 +484,7 @@ Step 11: Start a Kubernetes StatefulSet for MongoDB
.. code:: bash
$ kubectl --context k8s-bdb-test-cluster-0 get po -w
$ kubectl --context k8s-bdb-test-cluster-0 get pods -w
Step 12: Start a Kubernetes Deployment for MongoDB Monitoring Agent