# Use Alpine Linux as base image
FROM alpine:latest
# Install nginx
RUN apk update && \
apk add nginx && \
rm -rf /var/cache/apk/*
# Copy nginx configuration file
COPY nginx.conf /etc/nginx/http.d/default.conf
# Create html directory
RUN mkdir -p /var/www/html
# Copy index.html to /var/www/html
COPY index.html /var/www/html/
# Change ownership of /var/www/html to user 'nginx'
RUN chown -R nginx:nginx /var/www/html
# Set working directory
WORKDIR /var/www/html
# Expose port 80
EXPOSE 80
# Start nginx on container startup
CMD ["nginx", "-g", "daemon off;"]
server {
listen 80 default_server;
listen [::]:80 default_server;
root /var/www/html;
index index.html index.html;
# Everything is a 404
location / {
try_files $uri $uri/ =404;
}
# You may need this to prevent return 404 recursion.
location = /404.html {
internal;
}
}<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Welcome to DevKTOps</title>
<!-- Bootstrap CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css">
</head>
<body>
<div class="container">
<div class="jumbotron mt-5">
<h1 class="display-4">Welcome to DevKTOps!</h1>
<p class="lead">This is a simple web page served by nginx inside a Docker container.</p>
<hr class="my-4">
<p>Empowering your DevOps journey.</p>
</div>
</div>
<!-- Bootstrap JS -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js"></script>
</body>
</html>docker build -t hello-kt .
# run the container in the background and map port 8000 on the host to port 80 on the container
docker run --rm -d -p 8000:80 hello-kt
docker run -d -p 8000:80 hello-kt# Tag the image
docker tag hello-kt thixpin/hello-kt
# Tag the image with a version
docker tag hello-kt thixpin/hello-kt:1.0
# Docker login
docker login
# Push the image to Docker Hub
docker push thixpin/hello-kt
docker push thixpin/hello-kt:1.0# Create a Docker volume
docker volume create my-vol
# List the Docker volumes
docker volume ls
# Create a Docker network
docker network create my-net
# List the Docker networks
docker network ls
# Run the containers with the volume and network
docker run -d --name c1 --network my-net -v my-vol:/usr/share/nginx/html -p 8001:80 nginx:alpine
docker run -d --name c2 --network my-net -v my-vol:/usr/share/nginx/html nginx:alpine
# Add a file to the volume
docker exec -it c1 sh
cd /usr/share/nginx/html
ls
touch hello.html
echo "Hello World" > hello.html
ls
# Check the volume
docker exec c1 ls /usr/share/nginx/html
docker exec c1 ls /usr/share/nginx/html
# List the containers
docker ps -a
# Inspect the Docker volume
docker volume inspect my-vol
# Inspect the Docker network
docker network inspect my-net
# Very connectivty between the containers
docker exec c1 ping c2
docker exec c2 ping c1
# Remove the containers
docker rm -f c1 c2
# Remove the volume
docker volume rm my-vol
# Remove the network
docker network rm my-net
# remove the image
docker rmi hello-kt
# Prune the Docker system
# These commands are dangerous and should be used with caution
docker container prune -f # This will remove all the containers
docker volume prune -f # This will remove all the volumes
docker network prune -f # This will remove all the networks
docker system prune -a -f # This will remove all the containers, images, networks, and volumes