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BCContainer Networking and Setting a static IP

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Posted on by Mkay

Hi!

We are focused on using Docker EE on Win2019 for app development across our company. Using current Docker version and current BCContainerHelper

We were able to get a BCContainer installed on a transparent network. (network="tlan1")

However when applying the IP address additional parameter (IP="192.168.3.197") for example, we found that the container picked up that IP address, but the BC instance is using DHCP to get a dynamic IP from our IP pool. Really strange behavior I think.

i.e.

PS > Get-BcContainerIpAddress -containerName LabDocker1
192.168.0.12

This ip was served by DHCP

but:

PS C:\Windows\system32> docker network inspect tlan1

{
"Name": "tlan1",
"Id": "<xxxremoved for this postXXX>",
"Created": "2022-07-12T15:30:49.8789726-04:00",
"Scope": "local",
"Driver": "transparent",
"EnableIPv6": false,
"IPAM": {
"Driver": "windows",
"Options": {},
"Config": [
{
"Subnet": "192.168.0.0/22",
"Gateway": "192.168.2.10"
}
]
},
"Internal": false,
"Attachable": false,
"Ingress": false,
"ConfigFrom": {
"Network": ""
},
"ConfigOnly": false,
"Containers": {
"16432a42dc0bfd371f73add4c5ab1b425eb31f8c3ed528f2be295bc044b66c1e": {
"Name": "LabDocker1",
"EndpointID": "888bd68f3cdbde8b0ad07ab9ffdf952d08a4307c86db99c96cf276d6dc73cc30",
"MacAddress": "00:15:5d:22:2e:9a",
"IPv4Address": "192.168.3.197/24",
"IPv6Address": ""
}
},
"Options": {
"com.docker.network.windowsshim.hnsid": "54404D4E-D15F-4490-A11F-DD0CE2A82BDB"
},
"Labels": {}
}

We can reach BC on the dynamic IP, but not the static IP.

Any ideas?

All responses (6)

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Inge M. Bruvik 32,748 Super User 2024 Season 1 on at

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RE: BCContainer Networking and Setting a static IP

Using træfik might also be an option for you:

doc.traefik.io/.../
Mkay 10 on at

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RE: BCContainer Networking and Setting a static IP

Mohamad Vajid thank for the suggestion. I will submit there as well.
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Mohamad Vajid on at

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RE: BCContainer Networking and Setting a static IP

Hello.

I think it may be better to post this over at GitHub - microsoft/navcontainerhelper: Official Microsoft repository for BcContainerHelper, a PowerShell module, which makes it easier to work with Business Central Containers on Docker.

The issue itself is not related to Business Central and support for BcContainerHelper is provided over at the Github repo.

Having said that, you may try to connect the container to your specific network using docker network connect --ip but again this is out of scope for BC, sorry.

Thank you,
Mohamad
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Marco Mels on at

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RE: BCContainer Networking and Setting a static IP

Hello,

I will ask internally if someone came across this issue.

Thank you.
Mkay 10 on at

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RE: BCContainer Networking and Setting a static IP

Thanks for taking the time to respond Marco. I don't think this is a docker IP problem as it appears that the container is recognizing the static IP.
Marco Mels on at

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RE: BCContainer Networking and Setting a static IP

Hello,

Maybe this helps:

github.com/.../4952

Thanks.