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From the mailing list: We have just released Go versions 1.19.2 and 1.18.7, minor point releases. These minor releases include 3 security fixes following the security policy: - archive/tar: unbounded memory consumption when reading headers Reader.Read did not set a limit on the maximum size of file headers. A maliciously crafted archive could cause Read to allocate unbounded amounts of memory, potentially causing resource exhaustion or panics. Reader.Read now limits the maximum size of header blocks to 1 MiB. Thanks to Adam Korczynski (ADA Logics) and OSS-Fuzz for reporting this issue. This is CVE-2022-2879 and Go issue https://go.dev/issue/54853. - net/http/httputil: ReverseProxy should not forward unparseable query parameters Requests forwarded by ReverseProxy included the raw query parameters from the inbound request, including unparseable parameters rejected by net/http. This could permit query parameter smuggling when a Go proxy forwards a parameter with an unparseable value. ReverseProxy will now sanitize the query parameters in the forwarded query when the outbound request's Form field is set after the ReverseProxy.Director function returns, indicating that the proxy has parsed the query parameters. Proxies which do not parse query parameters continue to forward the original query parameters unchanged. Thanks to Gal Goldstein (Security Researcher, Oxeye) and Daniel Abeles (Head of Research, Oxeye) for reporting this issue. This is CVE-2022-2880 and Go issue https://go.dev/issue/54663. - regexp/syntax: limit memory used by parsing regexps The parsed regexp representation is linear in the size of the input, but in some cases the constant factor can be as high as 40,000, making relatively small regexps consume much larger amounts of memory. Each regexp being parsed is now limited to a 256 MB memory footprint. Regular expressions whose representation would use more space than that are now rejected. Normal use of regular expressions is unaffected. Thanks to Adam Korczynski (ADA Logics) and OSS-Fuzz for reporting this issue. This is CVE-2022-41715 and Go issue https://go.dev/issue/55949. View the release notes for more information: https://go.dev/doc/devel/release#go1.19.2 Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Docker Compose v2
Docker Compose is a tool for running multi-container applications on Docker
defined using the Compose file format.
A Compose file is used to define how the one or more containers that make up
your application are configured.
Once you have a Compose file, you can create and start your application with a
single command: docker compose up.
About update and backward compatibility
Docker Compose V2 is a major version bump release of Docker Compose. It has been completely rewritten from scratch in Golang (V1 was in Python). The installation instructions for Compose V2 differ from V1. V2 is not a standalone binary anymore, and installation scripts will have to be adjusted. Some commands are different.
For a smooth transition from legacy docker-compose 1.xx, please consider installing compose-switch to translate docker-compose ... commands into Compose V2's docker compose .... . Also check V2's --compatibility flag.
Where to get Docker Compose
Windows and macOS
Docker Compose is included in Docker Desktop for Windows and macOS.
Linux
You can download Docker Compose binaries from the release page on this repository.
Rename the relevant binary for your OS to docker-compose and copy it to $HOME/.docker/cli-plugins
Or copy it into one of these folders to install it system-wide:
/usr/local/lib/docker/cli-pluginsOR/usr/local/libexec/docker/cli-plugins/usr/lib/docker/cli-pluginsOR/usr/libexec/docker/cli-plugins
(might require making the downloaded file executable with chmod +x)
Quick Start
Using Docker Compose is basically a three-step process:
- Define your app's environment with a
Dockerfileso it can be reproduced anywhere. - Define the services that make up your app in
docker-compose.ymlso they can be run together in an isolated environment. - Lastly, run
docker compose upand Compose will start and run your entire app.
A Compose file looks like this:
services:
web:
build: .
ports:
- "5000:5000"
volumes:
- .:/code
redis:
image: redis
Contributing
Want to help develop Docker Compose? Check out our contributing documentation.
If you find an issue, please report it on the issue tracker.