yarn docker:build; and yarn docker:start

~/g/headless-wp-starter (docker|✔) $ yarn docker:build; and yarn docker:start
yarn run v1.7.0
$ docker build . -t wp_headless
Sending build context to Docker daemon   18.3MB
Step 1/21 : FROM ubuntu:18.04
 ---> 113a43faa138
Step 2/21 : ENV DEBIAN_FRONTEND noninteractive
 ---> Using cache
 ---> 807450512ff3
Step 3/21 : RUN apt-get update
 ---> Using cache
 ---> e1e3c865de04
Step 4/21 : RUN apt-get install -yq curl php gnupg wget sudo lsb-release debconf-utils
 ---> Using cache
 ---> 1a0be3e64809
Step 5/21 : RUN mkdir -p /usr/src/app
 ---> Using cache
 ---> ee02c1b79ed1
Step 6/21 : WORKDIR /usr/src/app
 ---> Using cache
 ---> d77c4b8a05f6
Step 7/21 : COPY install.sh /usr/src/app/install.sh
 ---> Using cache
 ---> 7572de39c2ab
Step 8/21 : RUN curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add -
 ---> Using cache
 ---> 303c940dbe02
Step 9/21 : RUN echo 'deb https://dl.yarnpkg.com/debian/ stable main' | tee /etc/apt/sources.list.d/yarn.list
 ---> Using cache
 ---> e12896194c25
Step 10/21 : RUN apt-get update
 ---> Using cache
 ---> 72261596ca3a
Step 11/21 : RUN apt-get install -yq yarn
 ---> Using cache
 ---> d45652baca03
Step 12/21 : RUN ./install.sh
 ---> Using cache
 ---> 5a6dec3f5c8d
Step 13/21 : RUN echo 'mysql-community-server mysql-community-server/root-pass password root' | debconf-set-selections
 ---> Using cache
 ---> 2e440ad7cfab
Step 14/21 : RUN echo 'mysql-community-server mysql-community-server/re-root-pass password root' | debconf-set-selections
 ---> Using cache
 ---> 07df3a3551a0
Step 15/21 : RUN echo 'mysql-community-server mysql-server/default-auth-override select Use Legacy Authentication Method (Retain MySQL 5.x Compatibility)' | debconf-set-selections
 ---> Using cache
 ---> 40a0cd59d266
Step 16/21 : RUN wget -c https://dev.mysql.com/get/mysql-apt-config_0.8.10-1_all.deb
 ---> Using cache
 ---> 116db62295fc
Step 17/21 : RUN dpkg -i mysql-apt-config_0.8.10-1_all.deb
 ---> Using cache
 ---> e272db7468f8
Step 18/21 : RUN apt-get update
 ---> Using cache
 ---> 0459233068ef
Step 19/21 : RUN apt-get -qy install mysql-server
 ---> Using cache
 ---> 96746ec82501
Step 20/21 : EXPOSE 8080
 ---> Using cache
 ---> 9e909fd05827
Step 21/21 : CMD [ './start_docker.sh' ]
 ---> Using cache
 ---> 2e6797d5adf8
Successfully built 2e6797d5adf8
Successfully tagged wp_headless:latest
✨  Done in 0.65s.
yarn run v1.7.0
$ docker run -v $(pwd)/data:/var/lib/mysql -v $(pwd):/usr/src/app -p 8080:8080 -it wp_headless
✨  Done in 1.23s.