Network Testbed

Experimenting with docker and protobuf to learn how to use them.

Still at experimental level havent implemented anything. I am new to docker and can't seem to solve the issue where:

RUN apt-get update

seem to execute all the time. Well if the Dockerfile wasn't edited it is fast but... well I edit it and its sooo slow.

Currently I don't know a fix but I remember when I worked with docker in school this wasn't an issue. That case I imported another repository: sysrepo/sysrepo-netopeer2:legacy whereas I import ubuntu:20.04 here.

Not sure how to work with this.

version: "3.9"
services:
  cli:
    build: base/
    networks:
      frontend:
        ipv4_address: 172.30.1.123
    command: tail -F hidden
  
  ser:
    build: base/
    networks:
      frontend:
        ipv4_address: 172.30.1.111
    command: tail -F hidden
      
networks:
  frontend:
    driver: bridge
    ipam:
      config:
        - subnet: 172.30.1.0/24
    driver_opts:
      com.docker.network.bridge.name: front_bridge

FROM ubuntu:20.04
COPY ./app /home/wldyd
WORKDIR /home/wldyd

RUN apt update && \
    apt install -y apt-transport-https curl gnupg && \
    curl -fsSL https://bazel.build/bazel-release.pub.gpg | gpg --dearmor >bazel-archive-keyring.gpg && \
    mv bazel-archive-keyring.gpg /usr/share/keyrings && \
    echo "deb [arch=amd64 signed-by=/usr/share/keyrings/bazel-archive-keyring.gpg] https://storage.googleapis.com/bazel-apt stable jdk1.8" | tee /etc/apt/sources.list.d/bazel.list && \
    apt update && apt install -y bazel && \
    apt install -y git  && \
    git clone https://github.com/protocolbuffers/protobuf.git && \
    cd protobuf && \
    git submodule update --init --recursive && \
    bazel build :protoc :protobuf && \
    cp bazel-bin/protoc /usr/local/bin

Dockerfile for installing protobuf. Now its a mess because protobuf seem to need bazel but it doesn't seem to install properly so I had to goto bazel official website and find instructions.

syntax = "proto3";

package foo.bar;

message Person{
    string name = 1;
    int32 student_id = 2;
    int32 age = 3;
    enum Month{
        MONTH_JANUARY = 0;
        MONTH_FEBRUARY = 1;
        MONTH_MARCH = 2;
        MONTH_APRIL = 3;
        MONTH_MAY = 4;
        MONTH_JUNE = 5;
        MONTH_JULY = 6;
        MONTH_AUGUST = 7;
        MONTH_SEPTEMBER = 8;
        MONTH_OCTOBER = 9;
        MONTH_NOVEMBER = 10;
        MONTH_DECEMBER = 11;
    }

    message myDate{
        int32 year = 1;
        int32 month = 2;
        int32 day = 3;
        Month enum_month = 4;
    }
    repeated myDate birthday = 4;
}

This is a protobuf schema file .proto which can be used for protobuf aka protocol buffers.