Container Network - "net_basic"

Q

What is the Container Network - "net_basic"?

✍: FYIcenter.com

A

"net_basic" is a Docker container network consists of all containers related to Hyperledger Fabric network, basic-network. A container network groups containers together to help network communications among those containers.

You can verify the "net_basic" container network, after you run the start.sh script:

$ cd ~/hyperledger-binaries/fabric-samples/basic-network

$ ./strt.sh
...

$ docker network inspect net_basic
[
    {
        "Name": "net_basic",
        "Id": "ff13abb21407d7764b667d473f01090077b5ff1c5c8f75b4bcbc670063605170",
        "Created": "2019-04-01T12:03:41.411515758Z",
        "Scope": "local",
        "Driver": "bridge",
        "EnableIPv6": false,
        "IPAM": {
            "Driver": "default",
            "Options": null,
            "Config": [
                {
                    "Subnet": "192.168.128.0/20",
                    "Gateway": "192.168.128.1"
                }
            ]
        },
        "Internal": false,
        "Attachable": false,
        "Ingress": false,
        "ConfigFrom": {
            "Network": ""
        },
        "ConfigOnly": false,
        "Containers": {
            "12361f3715a349eac6a2a6433a652a9b3ce2d2596557afb8005e4d3305b25f3f": {
                "Name": "ca.example.com",
                "EndpointID": "83a004dae45691027e4c2861e86ea78b7188af6dd76a3...",
                "MacAddress": "02:42:c0:a8:80:03",
                "IPv4Address": "192.168.128.3/20",
                "IPv6Address": ""
            },
            "1aa8a1f130e0b49e7cc454ca7957e331d7aaa1f6ad1a90317da25d3274042de2": {
                "Name": "peer0.org1.example.com",
                "EndpointID": "96d48509d5699d316f41890fe467c8e79daf321ad373f...",
                "MacAddress": "02:42:c0:a8:80:05",
                "IPv4Address": "192.168.128.5/20",
                "IPv6Address": ""
            },
            "54a9c4e74d1c19a6d761c5645b0996c9612c718ee23f2b44812f1d72e7b61408": {
                "Name": "orderer.example.com",
                "EndpointID": "1a79adb524b7a4e1837237f2487ca0968bdf43e2c30b3...",
                "MacAddress": "02:42:c0:a8:80:02",
                "IPv4Address": "192.168.128.2/20",
                "IPv6Address": ""
            },
            "9d3cdd6cc5c820b6dea6552526193ea2f4b4f313b8b9940945ec753502b692a5": {
                "Name": "couchdb",
                "EndpointID": "72b9e0a52bb0f74a3d1763a035e0f62d75f243d8d54b5...",
                "MacAddress": "02:42:c0:a8:80:04",
                "IPv4Address": "192.168.128.4/20",
                "IPv6Address": ""
            }
        },
        "Options": {},
        "Labels": {}
    }
]

As you can see, the "net_basic" network is defined as "local" IP network of 192.168.128.0/20, with each container assigned with a different "local" IP address.

The "net_basic" network allows its containers to do IP protocol communications with their "local" IP addresses.

 

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2020-04-14, 1029🔥, 0💬