Docker volume mount
A Docker volume mount is a configuration that makes a host path or managed volume available at a specified path inside a container.
Acing the Certified Kubernetes Administrator Exam, Second Edition
A volume mount is a container specification that makes a volume available at a path inside the container's filesystem.
- How it is used
- Mounts temporary, ConfigMap, or Secret-backed data into container paths for Pod operation and exam tasks.
- How deep it goes
- Demonstrates YAML fields, creation commands, and kubectl verification for temporary, ConfigMap, and Secret-backed mounts.
- Examples
- Uses a log collector at /var/log, Redis configuration, and Secret files under /etc/secret-vol.
- What you can do after
- Operate/configure Pod mounts with YAML and kubectl, then verify their status and volume type.
Build Python Web Apps with Streamlit
A volume mount is a configuration that makes files or directories from a host or managed volume available inside a container.
- How it is used
- Supplies runtime configuration and secrets to containers without building those files into the Docker image.
- How deep it goes
- Explains host-to-container path syntax and demonstrates Docker and Compose configuration, stopping short of volume lifecycle internals.
- Examples
- Uses a local .streamlit mount and a server-side /var/app/secrets/.streamlit mount for Streamlit configuration.
- What you can do after
- Operate/configure Docker containers and Compose services with runtime-mounted Streamlit secrets.
Read how Build Python Web Apps with Streamlit explains Docker volume mount →
Related concepts
- Docker volumeconfigures · A Docker volume is Docker-managed storage mounted into containers whose data persists independently of their writable layers and lifecycles.
- configmapused by · A ConfigMap is a Kubernetes API resource that stores non-confidential configuration data as key-value pairs for use by workloads and other cluster components.
- .streamlit directoryconfigures · The .streamlit directory is a project directory containing Streamlit configuration files and related settings.
- docker-compose.ymlconfigured by · docker-compose.yml is a declarative YAML configuration file that defines Docker Compose application services and their containers, networks, volumes, and runtime settings.
- emptydir volumeuses · An emptyDir volume is a Kubernetes volume that starts empty, is available to containers in a Pod, and is deleted when the Pod leaves its node.
- volumeuses · A volume is a logical storage resource that provides capacity for storing and accessing data, often by making it available to an operating system or application.
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