mirror of
https://github.com/corda/corda.git
synced 2024-12-27 16:28:56 +00:00
228 lines
8.9 KiB
ReStructuredText
228 lines
8.9 KiB
ReStructuredText
Creating nodes locally
|
|
======================
|
|
|
|
.. contents::
|
|
|
|
Node structure
|
|
--------------
|
|
Each Corda node has the following structure:
|
|
|
|
.. sourcecode:: none
|
|
|
|
.
|
|
├── certificates // The node's certificates
|
|
├── corda-webserver.jar // The built-in node webserver
|
|
├── corda.jar // The core Corda libraries
|
|
├── logs // The node logs
|
|
├── node.conf // The node's configuration files
|
|
├── persistence.mv.db // The node's database
|
|
└── cordapps // The CorDapps jars installed on the node
|
|
|
|
The node is configured by editing its ``node.conf`` file. You install CorDapps on the node by dropping the CorDapp JARs
|
|
into the ``cordapps`` folder.
|
|
|
|
Node naming
|
|
-----------
|
|
A node's name must be a valid X.500 distinguished name. In order to be compatible with other implementations
|
|
(particularly TLS implementations), we constrain the allowed X.500 attribute types to a subset of the minimum supported
|
|
set for X.509 certificates (specified in RFC 3280), plus the locality attribute:
|
|
|
|
* Organization (O)
|
|
* State (ST)
|
|
* Locality (L)
|
|
* Country (C)
|
|
* Organizational-unit (OU)
|
|
* Common name (CN) (only used for service identities)
|
|
|
|
The name must also obey the following constraints:
|
|
|
|
* The organisation, locality and country attributes are present
|
|
|
|
* The state, organisational-unit and common name attributes are optional
|
|
|
|
* The fields of the name have the following maximum character lengths:
|
|
|
|
* Common name: 64
|
|
* Organisation: 128
|
|
* Organisation unit: 64
|
|
* Locality: 64
|
|
* State: 64
|
|
|
|
* The country attribute is a valid ISO 3166-1 two letter code in upper-case
|
|
|
|
* All attributes must obey the following constraints:
|
|
|
|
* Upper-case first letter
|
|
* Has at least two letters
|
|
* No leading or trailing whitespace
|
|
* Does not include the following characters: ``,`` , ``=`` , ``$`` , ``"`` , ``'`` , ``\``
|
|
* Is in NFKC normalization form
|
|
* Does not contain the null character
|
|
* Only the latin, common and inherited unicode scripts are supported
|
|
|
|
* The organisation field of the name also obeys the following constraints:
|
|
|
|
* No double-spacing
|
|
|
|
* This is to avoid right-to-left issues, debugging issues when we can't pronounce names over the phone, and
|
|
character confusability attacks
|
|
|
|
The Cordform task
|
|
-----------------
|
|
Corda provides a gradle plugin called ``Cordform`` that allows you to automatically generate and configure a set of
|
|
nodes. Here is an example ``Cordform`` task called ``deployNodes`` that creates three nodes, defined in the
|
|
`Kotlin CorDapp Template <https://github.com/corda/cordapp-template-kotlin/blob/release-V3/build.gradle#L100>`_:
|
|
|
|
.. sourcecode:: groovy
|
|
|
|
task deployNodes(type: net.corda.plugins.Cordform, dependsOn: ['jar']) {
|
|
directory "./build/nodes"
|
|
networkMap "O=NetworkMapAndNotary,L=London,C=GB"
|
|
node {
|
|
name "O=NetworkMapAndNotary,L=London,C=GB"
|
|
// The notary will offer a validating notary service.
|
|
notary = [validating : true]
|
|
p2pPort 10002
|
|
rpcSettings {
|
|
port 10003
|
|
adminPort 10023
|
|
}
|
|
// No webport property, so no webserver will be created.
|
|
h2Port 10004
|
|
// Includes the corda-finance CorDapp on our node.
|
|
cordapps = ["net.corda:corda-finance:$corda_release_version"]
|
|
}
|
|
node {
|
|
name "O=PartyA,L=London,C=GB"
|
|
p2pPort 10005
|
|
rpcSettings {
|
|
port 10006
|
|
adminPort 10026
|
|
}
|
|
webPort 10007
|
|
h2Port 10008
|
|
cordapps = ["net.corda:corda-finance:$corda_release_version"]
|
|
// Grants user1 all RPC permissions.
|
|
rpcUsers = [[ user: "user1", "password": "test", "permissions": ["ALL"]]]
|
|
}
|
|
node {
|
|
name "O=PartyB,L=New York,C=US"
|
|
p2pPort 10009
|
|
rpcSettings {
|
|
port 10010
|
|
adminPort 10030
|
|
}
|
|
webPort 10011
|
|
h2Port 10012
|
|
cordapps = ["net.corda:corda-finance:$corda_release_version"]
|
|
// Grants user1 the ability to start the MyFlow flow.
|
|
rpcUsers = [[ user: "user1", "password": "test", "permissions": ["StartFlow.net.corda.flows.MyFlow"]]]
|
|
}
|
|
}
|
|
|
|
Running this task will create three nodes in the ``build/nodes`` folder:
|
|
|
|
* A ``NetworkMapAndNotary`` node that:
|
|
|
|
* Serves as the network map
|
|
* Offers a validating notary service
|
|
* Will not have a webserver (since ``webPort`` is not defined)
|
|
* Is running the ``corda-finance`` CorDapp
|
|
|
|
* ``PartyA`` and ``PartyB`` nodes that:
|
|
|
|
* Are pointing at the ``NetworkMapAndNotary`` as the network map service
|
|
* Are not offering any services
|
|
* Will have a webserver (since ``webPort`` is defined)
|
|
* Are running the ``corda-finance`` CorDapp
|
|
* Have an RPC user, ``user1``, that can be used to log into the node via RPC
|
|
|
|
Additionally, all three nodes will include any CorDapps defined in the project's source folders, even though these
|
|
CorDapps are not listed in each node's ``cordapps`` entry. This means that running the ``deployNodes`` task from the
|
|
template CorDapp, for example, would automatically build and add the template CorDapp to each node.
|
|
|
|
You can extend ``deployNodes`` to generate additional nodes. The only requirement is that you must specify
|
|
a single node to run the network map service, by putting its name in the ``networkMap`` field.
|
|
|
|
.. warning:: When adding nodes, make sure that there are no port clashes!
|
|
|
|
The Dockerform task
|
|
-------------------
|
|
|
|
The ```Dockerform``` is a sister task of ```Cordform```. It has nearly the same syntax and produces very
|
|
similar results - enhanced by an extra file to enable easy spin up of nodes using ```docker-compose```.
|
|
Below you can find the example task from the ```IRS Demo<https://github.com/corda/corda/blob/release-V3.0/samples/irs-demo/cordapp/build.gradle#L111>```
|
|
included in the samples directory of main Corda GitHub repository:
|
|
|
|
.. sourcecode:: groovy
|
|
|
|
def rpcUsersList = [
|
|
['username' : "user",
|
|
'password' : "password",
|
|
'permissions' : [
|
|
"StartFlow.net.corda.irs.flows.AutoOfferFlow\$Requester",
|
|
"StartFlow.net.corda.irs.flows.UpdateBusinessDayFlow\$Broadcast",
|
|
"StartFlow.net.corda.irs.api.NodeInterestRates\$UploadFixesFlow",
|
|
"InvokeRpc.vaultQueryBy",
|
|
"InvokeRpc.networkMapSnapshot",
|
|
"InvokeRpc.currentNodeTime",
|
|
"InvokeRpc.wellKnownPartyFromX500Name"
|
|
]]
|
|
]
|
|
|
|
// (...)
|
|
|
|
task prepareDockerNodes(type: net.corda.plugins.Dockerform, dependsOn: ['jar']) {
|
|
|
|
node {
|
|
name "O=Notary Service,L=Zurich,C=CH"
|
|
notary = [validating : true]
|
|
cordapps = ["${project(":finance").group}:finance:$corda_release_version"]
|
|
rpcUsers = rpcUsersList
|
|
useTestClock true
|
|
}
|
|
node {
|
|
name "O=Bank A,L=London,C=GB"
|
|
cordapps = ["${project(":finance").group}:finance:$corda_release_version"]
|
|
rpcUsers = rpcUsersList
|
|
useTestClock true
|
|
}
|
|
node {
|
|
name "O=Bank B,L=New York,C=US"
|
|
cordapps = ["${project(":finance").group}:finance:$corda_release_version"]
|
|
rpcUsers = rpcUsersList
|
|
useTestClock true
|
|
}
|
|
node {
|
|
name "O=Regulator,L=Moscow,C=RU"
|
|
cordapps = ["${project.group}:finance:$corda_release_version"]
|
|
rpcUsers = rpcUsersList
|
|
useTestClock true
|
|
}
|
|
}
|
|
|
|
There is no need to specify the ports, as every node is a separated container, so no ports conflict will occur.
|
|
Running the task will create the same folders structure as described in :ref:`The Cordform task` with an additional
|
|
```Dockerfile`` in each node directory, and ```docker-compose.yml``` in ```build/nodes``` directory. Every node
|
|
by default exposes port 10003 which is the default one for RPC connections.
|
|
|
|
.. warning:: Webserver is not supported by this task!
|
|
|
|
.. warning:: Nodes are run without the local shell enabled!
|
|
|
|
|
|
Running deployNodes
|
|
-------------------
|
|
To create the nodes defined in our ``deployNodes`` task, run the following command in a terminal window from the root
|
|
of the project where the ``deployNodes`` task is defined:
|
|
|
|
* Linux/macOS: ``./gradlew deployNodes``
|
|
* Windows: ``gradlew.bat deployNodes``
|
|
|
|
This will create the nodes in the ``build/nodes`` folder. There will be a node folder generated for each node defined
|
|
in the ``deployNodes`` task, plus a ``runnodes`` shell script (or batch file on Windows) to run all the nodes at once
|
|
for testing and development purposes. If you make any changes to your CorDapp source or ``deployNodes`` task, you will
|
|
need to re-run the task to see the changes take effect.
|
|
|
|
You can now run the nodes by following the instructions in :doc:`Running a node <running-a-node>`.
|