Nginx Regex Expression
Nginx location block allow you to route request to particular location in file system or particular url.
Below example is to show how to route domain name and number to domain.com:port.
server {
listen 80;
server_name anup.co.in;
root /usr/share/nginx/html;
location ~ "/app/lck/([a-z0-9\-\.]+)/([0-9]+)" {
return 301 http://$1:$2;
}
}
Above highlighted part will redirect as follows -
http://anup.co.in/app/lck/google.com/8080 --> http://google.com:8080
How to run Docker inside Docker using Dockerfile
In some cases we want to run docker command inside docker container, we can do that by mapping docker.sock volume while running container. The other option is to use your Dockerfile.
1] Here is Dockerfile -
FROM ubuntu:18.04
#Install Docker
RUN apt-get update
RUN apt-get -y install apt-transport-https
RUN apt-get -y install ca-certificates
RUN apt-get -y install curl
RUN apt-get -y install gnupg2
RUN apt-get -y install software-properties-common
ENV APT_KEY_DONT_WARN_ON_DANGEROUS_USAGE=DontWarn
RUN curl -fsSL https://download.docker.com/linux/ubuntu/gpg | (OUT=$(apt-key add - 2>&1) || echo $OUT)
RUN add-apt-repository --yes "deb [arch=amd64] https://download.docker.com/linux/ubuntu bionic stable"
RUN apt-get update
RUN echo "deb http://security.ubuntu.com/ubuntu xenial-security main" >> /etc/apt/sources.list; apt-get update
RUN apt-get -y install build-essential
RUN apt-get -y install docker-ce docker-ce-cli containerd.io
CMD ["tail", "-f", "/dev/null"]
