Docker: Difference between revisions
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==Solutions== | ==Solutions== | ||
Docker was released in 2013 and solved many of the problems that developers had running containers end-to-end | Docker was released in 2013 and solved many of the problems that developers had running containers end-to-end focused on these low-level features: | ||
# A container image format | # A container image format | ||
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# A way to run containers (docker run) | # A way to run containers (docker run) | ||
Open Container Initiative | Open Container Initiative was created to expand the scope of docker solutions. There are for high-level docker support. | ||
* [https://www.opencontainers.org Open Container Initiative (OCI)] | * [https://www.opencontainers.org Open Container Initiative (OCI)] | ||
* [https://github.com/opencontainers/runtime-spec OCI runtime specification]. | * [https://github.com/opencontainers/runtime-spec OCI runtime specification]. | ||
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# Unpack the image into a "bundle". This flattens the layers into a single filesystem. | # Unpack the image into a "bundle". This flattens the layers into a single filesystem. | ||
# Run the container from the bundle | # Run the container from the bundle | ||
===Step by Step Instructions=== | |||
* [https://www.digitalocean.com/docs/apis-clis/doctl/how-to/install/ Install the Digital Ocean controller on windows]. It is call doctl.exe. | |||
==Deploy App Image to Digital Ocean== | ==Deploy App Image to Digital Ocean== | ||
Revision as of 18:15, 14 November 2020
Full Title or Meme
Docker is a system for building, deploying and running complex images of a program with its runtime.
Context
- This wiki page is focus on the user of Digital Ocean from a Windows workstation targeting the Kantara preferred instance.
- With the rise of cloud computing the need arose to give users an easy way to create a run-time package that could be sent to any cloud Platform as a Service provider (PaaS) with complete interoperability.
Solutions
Docker was released in 2013 and solved many of the problems that developers had running containers end-to-end focused on these low-level features:
- A container image format
- A method for building container images (Dockerfile/docker build)
- A way to manage container images (docker images, docker rm , etc.)
- A way to manage instances of containers (docker ps, docker rm , etc.)
- A way to share container images (docker push/pull)
- A way to run containers (docker run)
Open Container Initiative was created to expand the scope of docker solutions. There are for high-level docker support.
- Open Container Initiative (OCI)
- OCI runtime specification.
- Google code for running containers as a tool and library called runc
When you run a Docker container, these are the steps Docker actually goes through:
- Download the image
- Unpack the image into a "bundle". This flattens the layers into a single filesystem.
- Run the container from the bundle
Step by Step Instructions
- Install the Digital Ocean controller on windows. It is call doctl.exe.
Deploy App Image to Digital Ocean
- Deploying App to Digital Ocean from Brandon Lehr using HTTPS-PORTAL in docker compose.