Docker Certification (開発者向けの仕組み)

What is Docker?

Docker is a free, open-source containerization platform that makes it easier to develop, deploy, and maintain applications. It provides a lightweight container that includes an application and all its dependencies, allowing it to run in various environments—from the developer's personal computer to a production server. These containers are more efficient and faster because they share the operating system kernel of the host system, unlike traditional virtual machines.

Docker is not just about the engine; it provides a model to create, manage, and share containers. A key component of this model is Docker images, shared via Docker Hub—a special type of repository for storing and distributing container images. Docker is prominent in cloud-based development workflows and DevOps for its scalability, portability, and efficiency. Docker is available in two versions: Docker Community Edition and Docker Enterprise Edition.

What is a Docker certificate?

A Docker certificate is a digital document used to establish secure communications between a Docker client and a Docker server, such as a Docker daemon or a Docker registry, using HTTPS. It is a crucial component of Docker's TLS configuration, ensuring secure client-server interactions. This is particularly useful when deploying Docker in production or distributed environments.

# Generate CA private key
openssl genrsa -aes256 -out ca-key.pem 4096

# Generate CA certificate
openssl req -new -x509 -days 365 -key ca-key.pem -sha256 -out ca.pem

# Generate CA private key
openssl genrsa -aes256 -out ca-key.pem 4096

# Generate CA certificate
openssl req -new -x509 -days 365 -key ca-key.pem -sha256 -out ca.pem

# Generate server private key
openssl genrsa -out server-key.pem 4096

# Create server certificate signing request (CSR)
openssl req -subj "/CN=your-server" -sha256 -new -key server-key.pem -out server.csr

# Sign the server certificate using the CA
openssl x509 -req -days 365 -sha256 -in server.csr -CA ca.pem -CAkey ca-key.pem -CAcreateserial -out server-cert.pem

# Generate server private key
openssl genrsa -out server-key.pem 4096

# Create server certificate signing request (CSR)
openssl req -subj "/CN=your-server" -sha256 -new -key server-key.pem -out server.csr

# Sign the server certificate using the CA
openssl x509 -req -days 365 -sha256 -in server.csr -CA ca.pem -CAkey ca-key.pem -CAcreateserial -out server-cert.pem

{
  "tls": true,
  "tlsverify": true,
  "tlscacert": "/etc/docker/ca.pem",
  "tlscert": "/etc/docker/server-cert.pem",
  "tlskey": "/etc/docker/server-key.pem",
  "hosts": ["tcp://0.0.0.0:2376", "unix:///var/run/docker.sock"]
}

What is IronSecureDoc?

IronSecureDoc is a product by Iron Software designed to secure documents, notably PDFs, through robust encryption and user permissions. Organizations benefit from advanced AES-256 encryption protocols, restricting access to sensitive information. Custom permissions govern printing, editing, or copying, thus enforcing authorized access. It supports password protection and digital signatures, ensuring document integrity and security, with watermarking options.

IronSecureDoc is developer-friendly, adaptable to applications running through Docker or other environments, crucial in industries like health, finance, and legal, where document confidentiality is paramount.

docker pull ironsoftwareofficial/ironsecuredoc

docker pull ironsoftwareofficial/ironsecuredoc

docker container run --rm -p 8080:8080 -e IronSecureDoc_LicenseKey=<IRONSECUREDOC_LICENSE_KEY> -e ENVIRONMENT=Development -e HTTP_PORTS=8080 ironsoftwareofficial/ironsecuredoc:latest

docker container run --rm -p 8080:8080 -e IronSecureDoc_LicenseKey=<IRONSECUREDOC_LICENSE_KEY> -e ENVIRONMENT=Development -e HTTP_PORTS=8080 ironsoftwareofficial/ironsecuredoc:latest

curl -X 'POST' \
  'http://localhost:8080/v1/document-services/pdfs/encrypt?user_password=demo' \
  -H 'accept: */*' \
  -H 'Content-Type: multipart/form-data' \
  -F 'pdf_file=@test.pdf;type=application/pdf'

curl -X 'POST' \
  'http://localhost:8080/v1/document-services/pdfs/encrypt?user_password=demo' \
  -H 'accept: */*' \
  -H 'Content-Type: multipart/form-data' \
  -F 'pdf_file=@test.pdf;type=application/pdf'

Conclusion

Docker certificates and IronSecureDoc offer a secure framework for managing documents in containerized environments. Docker certificates ensure encrypted and authenticated communication between Docker clients and servers, supporting the secure deployment and management of container-hosted applications like IronSecureDoc. This framework limits access to trusted entities, preventing unauthorized actions within server environments.

IronSecureDoc enhances document-specific security through encryption, access control, and digital signatures, protecting both infrastructure and sensitive data. For licensing information about IronSecureDoc, visit this page. For more about Iron Software's offerings, click here.