[PLUG] Regarding bitcoin-core 0.18.1 + Docker ce 19.03.4 + Ubuntu 18.04.3

[Amey Abhyankar]

Hello,

On Fri, 6 Dec 2019 at 10:40, AlphaOmega <alpha0mega at disroot.org> wrote:

>
>
> On Dec 6, 2019 09:53, Amey Abhyankar <sco1984 at gmail.com> wrote:
>
> Hello,
>
> Not sure if we have any Blockchain enthusiasts or developers in our group.
> I am facing 1 issue.
> Just wonder if anybody facing the same issue.
>
> Goal: Dockerize bitcoin-core to optimise resource utilisation & to
> eliminate need to keep open the bitcoin-core GUI in Ubuntu.
>
> Solution: Dockerize bitcoin-core using =
> https://bitcoin.org/bin/bitcoin-core-0.18.1/
>
> Issue statement: Unable to send RPC aka 'Remote Procedure Call' from base
> machine to docker instance.
>
>
> Did you use `--rpc' at the docker command line (while launching docker
> container)?
>

No.

Taking example of 'ruimarinho's readme.md =
*Step 1) *I started container using command =

docker run --rm --name bitcoin-server -it ruimarinho/bitcoin-core \
  -printtoconsole \
  -regtest=1 \
  -rpcallowip=172.17.0.0/16 \

  -rpcauth='
foo:7d9ba5ae63c3d4dc30583ff4fe65a67e$9e3634e81c11659e3de036d0bf88f89cd169c1039e6e09607562d54765c649cc
'

Are you able to run the bitcoin-core using --rpc flag i.e.

docker run --rm *--rpc* --name bitcoin-server -it ruimarinho/bitcoin-core \
  -printtoconsole \
  -regtest=1 \
  -rpcallowip=172.17.0.0/16 \

  -rpcauth='
foo:7d9ba5ae63c3d4dc30583ff4fe65a67e$9e3634e81c11659e3de036d0bf88f89cd169c1039e6e09607562d54765c649cc
'

*Step 2) *RPC thing =
 docker run -it --link bitcoin-server --rm ruimarinho/bitcoin-core \

  bitcoin-cli \
  -rpcconnect=bitcoin-server \
  -regtest \
  -rpcuser=foo\
  -stdinrpcpass \
  getbalance


It throws error saying server not found.
But if I do docker ps it shows the container in running mode.
I tried with other combinations but then it says make sure bitcoin dameon
is running.
By doing docker exec -it container bash I ensured that the daemon is
running & listening on respective port.


>
> Software version's used:
>
> - Ubuntu 18.04.3 LTS as base machine
> - Docker ce 19.03.4 version
> - bitcoin-core 0.18.1
> -Local laptop [no cloud/no vmware/no firewalls]
>
> Docker images that I tried:
>
> 1) https://github.com/ruimarinho/docker-bitcoin-core/
> 2) https://github.com/juanluisbaptiste/docker-bitcoin-wallet
> 3)
> https://medium.com/@kay.odenthal_25114/access-bitcoind-instance-inside-docker-container-via-json-rpc-cef25ea32f51
>
> Blockers:
>
> - Remote procedure call aka RPC not working from base machine i.e. Ubuntu
> 18.94.3
> - Unable to telnet bitcoin-core on respective ports from base machine.
> Able to telnet other docker instance on same machine without any issues.
> - bitcoin-core just runs fine in test mode & in prod mode in docker
> without any issue
> - I did customisation of bitcoin.conf file to put custom ports &
> credentials
> - Followed the config changes suggested by bitcoin dev team in release
> notes = https://bitcoin.org/en/release/v0.18.0#mining
>
> Regards,
> Amey.
>
>
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