instruction: Create a Dockerfile for fundamentals
output: ```dockerfile
  from the context to the build container
  COPY your_certificate.crt /usr/local/share/ca-certificates/
  # Update the CA certificates in the container
  RUN update-ca-certificatesAdd certificates to containers
  NoteThe following commands are for an Ubuntu-based container. If your container
  uses a different Linux distribution, use equivalent commands for package
  management (apt-get, update-ca-certificates, and so on).To add a CA certificate to a running Linux container:Download the CA certificate for your MITM proxy software.If the certificate is in a format other than .crt, convert it to .crt format:Example command
  
  $ openssl x509 -in cacert.der -inform DER -out myca.crt
  Copy the certificate into the running container:
  
  $ docker cp myca.crt <containerid>:/tmp
  Attach to the container:
  
  $ docker exec -it <containerid> sh
  Ensure the ca-certificates package is installed (required for updating certificates):
  
  # apt-get update && apt-get install -y ca-certificates
  Copy the certificate to the correct location for CA certificates:
  
  # cp /tmp/myca.crt /usr/local/share/ca-certificates/root_cert.crt
  Update the CA certificates:
  
  # update-ca-certificates
  Example output
  
  Updating certificates in /etc/ssl/certs...
  rehash: warning: skipping ca-certificates.crt, it does not contain exactly one certificate or CRL
  1 added, 0 removed; done.Verify that the container can communicate via the MITM proxy:
  
  # curl https://example.com
  Example output
  
  <!doctype html>
  <html>
  <head>
   <title>Example Domain</title>
  ...
  Request changesTable of contentsAdd CA certificate to the hostmacOSWindowsAdd CA certificates to Linux images and containersAdd certificates to imagesAdd certificates to containers
  
  Product offerings
  Pricing
  About us
  Contribute
  Read llms.txt
  Cookies Settings
  
  Status
  Legal```