version: '2'
services:

  db:
    image: postgres
    environment:
      - POSTGRES_PASSWORD=wikitelegrambot
    command: psql -U postgres
    command: CREATE TABLE users(ID SERIAL PRIMARY KEY, TIMESTAMP TIMESTAMP DEFAULT CURRENT_TIMESTAMP, USERNAME TEXT, CHAT_ID INT, MESSAGE TEXT, ANSWER TEXT);

  bot:
    image: alpine
    volumes:
      - /code:/lib
    command: sh -c "cd lib && cd code && apk add --no-cache ca-certificates && chmod +x code && ./code"

Creating network "telegrambotgo_default" with the default driver
Creating telegrambotgo_bot_1 ... done
Creating telegrambotgo_db_1  ... done
Attaching to telegrambotgo_bot_1, telegrambotgo_db_1
bot_1  | standard_init_linux.go:195: exec user process caused "no such file or directory"
db_1   | /usr/local/bin/docker-entrypoint.sh: line 145: exec: CREATE: not found
telegrambotgo_bot_1 exited with code 1
telegrambotgo_db_1 exited with code 127

FROM alpine
COPY /code/code /
RUN apk add --no-cache ca-certificates &&
    chmod +x code
EXPOSE 80/tcp
CMD [ "./code" ]

docker run --name db -e POSTGRES_PASSWORD=mypassword -d postgres
docker exec -it db bash
psql -U postgres
CREATE TABLE users(ID SERIAL PRIMARY KEY, TIMESTAMP TIMESTAMP DEFAULT CURRENT_TIMESTAMP, USERNAME TEXT, CHAT_ID INT, MESSAGE TEXT, ANSWER TEXT);
docker run --name bot --link db -d myapp

host=172.17.0.2 port=5432 user=postgres password=wikitelegrambot dbname=postgres sslmode=disable