diff --git a/docs/mkdocs.yml b/docs/mkdocs.yml old mode 100755 new mode 100644 index 6e018f4afa..faa758546b --- a/docs/mkdocs.yml +++ b/docs/mkdocs.yml @@ -26,6 +26,7 @@ pages: # Introduction: - ['index.md', 'About', 'Docker'] +- ['release-notes.md', 'About', 'Release Notes'] - ['introduction/index.md', '**HIDDEN**'] - ['introduction/understanding-docker.md', 'About', 'Understanding Docker'] diff --git a/docs/sources/index.md b/docs/sources/index.md index bcec387f6b..5780eab05d 100644 --- a/docs/sources/index.md +++ b/docs/sources/index.md @@ -88,63 +88,4 @@ implementation, check out the [Docker User Guide](/userguide/). ## Release Notes -**Version 1.3.0** - -This version fixes a number of bugs and issues and adds new functions and other -improvements. The [GitHub 1.3 milestone](https://github.com/docker/docker/issues?q=milestone%3A1.3.0+) has -more detailed information. Major additions and changes include: - -*New command: `docker exec`* - -The new `docker exec` command lets you run a process in an existing, active -container. The command has APIs for both the daemon and the client. With -`docker exec`, you'll be able to do things like add or remove devices from -running containers, debug running containers, and run commands that are not -part of the container's static specification. Details in the [command line -reference](/reference/commandline/cli/#exec). - -*New command: `docker create`* - -Traditionally, the `docker run` command has been used to both create a -container and spawn a process to run it. The new `docker create` command breaks -this apart, letting you set up a container without actually starting it. This -provides more control over management of the container lifecycle, giving you the -ability to configure things like volumes or port mappings before the container -is started. For example, in a rapid-response scaling situation, you could use -`create` to prepare and stage ten containers in anticipation of heavy loads. -Details in the [command line reference](/reference/commandline/cli/#create). - -*Tech preview of new provenance features* - -This release offers a sneak peek at new image signing capabilities that are -currently under development. Soon, these capabilities will allow any image -author to sign their images to certify they have not been tampered with. For -this release, Official images are now signed by Docker, Inc. Not only does this -demonstrate the new functionality, we hope it will improve your confidence in -the security of Official images. Look for the blue ribbons denoting signed -images on the [Docker Hub](https://hub.docker.com/). -The Docker Engine has been updated to automatically verify that a given -Official Repo has a current, valid signature. When pulling a signed image, -you'll see a message stating `the image you are pulling has been verified`. If -no valid signature is detected, Docker Engine will fall back to pulling a -regular, unsigned image. - -*Other improvements & changes* - -* We've added a new security options flag to the `docker run` command, -`--security-opt`, that lets you set SELinux and AppArmor labels and profiles. -This means you'll no longer have to use `docker run --privileged` on kernels -that support SE Linux or AppArmor. For more information, see the -[command line reference](/reference/commandline/cli/#run). - -* A new flag, `--add-host`, has been added to `docker run` that lets you add -lines to `/etc/hosts`. This allows you to specify different name -resolution for the container than it would get via DNS. For more information, -see the [command line reference](/reference/commandline/cli/#run). - -* You can now set a `DOCKER_TLS_VERIFY` environment variable to secure -connections by default (rather than having to pass the `--tlsverify` flag on -every call). For more information, see the [https guide](/articles/https). - -* Three security issues have been addressed in this release: [CVE-2014-5280, -CVE-2014-5270, and CVE-2014-5282](https://groups.google.com/forum/#!msg/docker-announce/aQoVmQlcE0A/smPuBNYf8VwJ). +A summary of the changes in each release in the current series can now be found on the separate [Release Notes page](/release-notes/) diff --git a/docs/sources/reference/api/hub_registry_spec.md b/docs/sources/reference/api/hub_registry_spec.md index ee15277a44..853eda4aee 100644 --- a/docs/sources/reference/api/hub_registry_spec.md +++ b/docs/sources/reference/api/hub_registry_spec.md @@ -4,7 +4,9 @@ page_keywords: docker, registry, api, hub # The Docker Hub and the Registry spec -## The 3 roles +## The three roles + +There are three major components playing a role in the Docker ecosystem. ### Docker Hub @@ -21,13 +23,15 @@ The Docker Hub has different components: - Authentication service - Tokenization -The Docker Hub is authoritative for those information. +The Docker Hub is authoritative for that information. -We expect that there will be only one instance of the Docker Hub, run and +There is only one instance of the Docker Hub, run and managed by Docker Inc. ### Registry +The registry has the following characteristics: + - It stores the images and the graph for a set of repositories - It does not have user accounts data - It has no notion of user accounts or authorization @@ -37,35 +41,35 @@ managed by Docker Inc. - It doesn't have a local database - [Source Code](https://github.com/docker/docker-registry) -We expect that there will be multiple registries out there. To help to +We expect that there will be multiple registries out there. To help you grasp the context, here are some examples of registries: - **sponsor registry**: such a registry is provided by a third-party hosting infrastructure as a convenience for their customers and the - docker community as a whole. Its costs are supported by the third + Docker community as a whole. Its costs are supported by the third party, but the management and operation of the registry are - supported by dotCloud. It features read/write access, and delegates + supported by Docker, Inc. It features read/write access, and delegates authentication and authorization to the Docker Hub. - **mirror registry**: such a registry is provided by a third-party hosting infrastructure but is targeted at their customers only. Some mechanism (unspecified to date) ensures that public images are pulled from a sponsor registry to the mirror registry, to make sure - that the customers of the third-party provider can “docker pull” + that the customers of the third-party provider can `docker pull` those images locally. - **vendor registry**: such a registry is provided by a software - vendor, who wants to distribute docker images. It would be operated + vendor who wants to distribute docker images. It would be operated and managed by the vendor. Only users authorized by the vendor would be able to get write access. Some images would be public (accessible for anyone), others private (accessible only for authorized users). Authentication and authorization would be delegated to the Docker Hub. - The goal of vendor registries is to let someone do “docker pull - basho/riak1.3” and automatically push from the vendor registry - (instead of a sponsor registry); i.e. get all the convenience of a + The goal of vendor registries is to let someone do `docker pull + basho/riak1.3` and automatically push from the vendor registry + (instead of a sponsor registry); i.e., vendors get all the convenience of a sponsor registry, while retaining control on the asset distribution. - **private registry**: such a registry is located behind a firewall, or protected by an additional security layer (HTTP authorization, SSL client-side certificates, IP address authorization...). The - registry is operated by a private entity, outside of dotCloud's + registry is operated by a private entity, outside of Docker's control. It can optionally delegate additional authorization to the Docker Hub, but it is not mandatory. @@ -77,7 +81,7 @@ grasp the context, here are some examples of registries: > - local mount point; > - remote docker addressed through SSH. -The latter would only require two new commands in docker, e.g., +The latter would only require two new commands in Docker, e.g., `registryget` and `registryput`, wrapping access to the local filesystem (and optionally doing consistency checks). Authentication and authorization are then delegated diff --git a/docs/sources/reference/api/registry_api.md b/docs/sources/reference/api/registry_api.md index 8fe24cf6fb..0839fe209f 100644 --- a/docs/sources/reference/api/registry_api.md +++ b/docs/sources/reference/api/registry_api.md @@ -21,30 +21,30 @@ grasp the context, here are some examples of registries: - **sponsor registry**: such a registry is provided by a third-party hosting infrastructure as a convenience for their customers and the - docker community as a whole. Its costs are supported by the third + Docker community as a whole. Its costs are supported by the third party, but the management and operation of the registry are - supported by dotCloud. It features read/write access, and delegates + supported by Docker. It features read/write access, and delegates authentication and authorization to the Index. - **mirror registry**: such a registry is provided by a third-party hosting infrastructure but is targeted at their customers only. Some mechanism (unspecified to date) ensures that public images are pulled from a sponsor registry to the mirror registry, to make sure - that the customers of the third-party provider can “docker pull” + that the customers of the third-party provider can `docker pull` those images locally. - **vendor registry**: such a registry is provided by a software - vendor, who wants to distribute docker images. It would be operated + vendor, who wants to distribute Docker images. It would be operated and managed by the vendor. Only users authorized by the vendor would be able to get write access. Some images would be public (accessible for anyone), others private (accessible only for authorized users). Authentication and authorization would be delegated to the Index. - The goal of vendor registries is to let someone do “docker pull - basho/riak1.3” and automatically push from the vendor registry - (instead of a sponsor registry); i.e. get all the convenience of a + The goal of vendor registries is to let someone do `docker pull + basho/riak1.3` and automatically push from the vendor registry + (instead of a sponsor registry); i.e., get all the convenience of a sponsor registry, while retaining control on the asset distribution. - **private registry**: such a registry is located behind a firewall, or protected by an additional security layer (HTTP authorization, SSL client-side certificates, IP address authorization...). The - registry is operated by a private entity, outside of dotCloud's + registry is operated by a private entity, outside of Docker's control. It can optionally delegate additional authorization to the Index, but it is not mandatory. @@ -52,7 +52,7 @@ grasp the context, here are some examples of registries: > Mirror registries and private registries which do not use the Index > don't even need to run the registry code. They can be implemented by any > kind of transport implementing HTTP GET and PUT. Read-only registries -> can be powered by a simple static HTTP server. +> can be powered by a simple static HTTPS server. > **Note**: > The latter implies that while HTTP is the protocol of choice for a registry, @@ -60,13 +60,20 @@ grasp the context, here are some examples of registries: > > - HTTP with GET (and PUT for read-write registries); > - local mount point; -> - remote docker addressed through SSH. +> - remote Docker addressed through SSH. -The latter would only require two new commands in docker, e.g., +The latter would only require two new commands in Docker, e.g., `registryget` and `registryput`, wrapping access to the local filesystem (and optionally doing consistency checks). Authentication and authorization are then delegated to SSH (e.g., with public keys). +> **Note**: +> Private registry servers that expose an HTTP endpoint need to be secured with +> TLS (preferably TLSv1.2, but at least TLSv1.0). Make sure to put the CA +> certificate at /etc/docker/certs.d/my.registry.com:5000/ca.crt on the Docker +> host, so that the daemon can securely access the private registry. +> Support for SSLv3 and lower is not available due to security issues. + The default namespace for a private repository is `library`. # Endpoints diff --git a/docs/sources/reference/commandline/cli.md b/docs/sources/reference/commandline/cli.md index 1d4202811d..8a158d7334 100644 --- a/docs/sources/reference/commandline/cli.md +++ b/docs/sources/reference/commandline/cli.md @@ -112,7 +112,12 @@ direct access to the Docker daemon - and should be secured either using the [built in https encrypted socket](/articles/https/), or by putting a secure web proxy in front of it. You can listen on port `2375` on all network interfaces with `-H tcp://0.0.0.0:2375`, or on a particular network interface using its IP -address: `-H tcp://192.168.59.103:2375`. +address: `-H tcp://192.168.59.103:2375`. It is conventional to use port `2375` +for un-encrypted, and port `2376` for encrypted communication with the daemon. + +> **Note** If you're using an HTTPS encrypted socket, keep in mind that only TLS1.0 +> and greater are supported. Protocols SSLv3 and under are not supported anymore +> for security reasons. On Systemd based systems, you can communicate with the daemon via [systemd socket activation](http://0pointer.de/blog/projects/socket-activation.html), use diff --git a/docs/sources/release-notes.md b/docs/sources/release-notes.md new file mode 100644 index 0000000000..6b2f0fd571 --- /dev/null +++ b/docs/sources/release-notes.md @@ -0,0 +1,291 @@ +page_title: Docker 1.x Series Release Notes page_description: Release Notes for +Docker 1.x. page_keywords: docker, documentation, about, technology, +understanding, release + +#Release Notes + +##Version 1.3.1 +(2014-10-28) + +This release fixes some bugs and addresses some security issues. + +*Security fixes* + +Patches and changes were made to address CVE-2014-5277 and CVE-2014-3566. Specifically, changes were made to: +* Prevent fallback to SSL protocols < TLS 1.0 for client, daemon and registry +* Secure HTTPS connection to registries with certificate verification and without HTTP fallback unless `--insecure-registry` is specified. + +*Runtime fixes* + +* Fixed issue where volumes would not be shared + +*Client fixes* + +* Fixed issue with `--iptables=false` not automatically setting +`--ip-masq=false` +* Fixed docker run output to non-TTY stdout + +*Builder fixes* + +* Fixed escaping `$` for environment variables +* Fixed issue with lowercase `onbuild` Dockerfile instruction + + +##Version 1.3.0 + +This version fixes a number of bugs and issues and adds new functions and other +improvements. The [GitHub 1.3milestone](https://github.com/docker/docker/issues?q=milestone%3A1.3.0+) has +more detailed information. Major additions and changes include: + +###New Features + +*New command: `docker exec`* + +The new `docker exec` command lets you run a process in an existing, active +container. The command has APIs for both the daemon and the client. With `docker +exec`, you'll be able to do things like add or remove devices from running +containers, debug running containers, and run commands that are not part of the +container's static specification. Details in the [command line reference](/reference/commandline/cli/#exec). + +*New command: `docker create`* + +Traditionally, the `docker run` command has been used to both create a container +and spawn a process to run it. The new `docker create` command breaks this +apart, letting you set up a container without actually starting it. This +provides more control over management of the container lifecycle, giving you the +ability to configure things like volumes or port mappings before the container +is started. For example, in a rapid-response scaling situation, you could use +`create` to prepare and stage ten containers in anticipation of heavy loads. +Details in the [command line reference](/reference/commandline/cli/#create). + +*Tech preview of new provenance features* + +This release offers a sneak peek at new image signing capabilities that are +currently under development. Soon, these capabilities will allow any image +author to sign their images to certify they have not been tampered with. For +this release, Official images are now signed by Docker, Inc. Not only does this +demonstrate the new functionality, we hope it will improve your confidence in +the security of Official images. Look for the blue ribbons denoting signed +images on the [Docker Hub](https://hub.docker.com/). The Docker Engine has been +updated to automatically verify that a given Official Repo has a current, valid +signature. When pulling a signed image, you'll see a message stating `the image +you are pulling has been verified`. If no valid signature is detected, Docker +Engine will fall back to pulling a regular, unsigned image. + +###Other improvements & changes* + +* We've added a new security options flag to the `docker run` command, +`--security-opt`, that lets you set SELinux and AppArmor labels and profiles. +This means you'll no longer have to use `docker run --privileged` on kernels +that support SE Linux or AppArmor. For more information, see the [command line +reference](/reference/commandline/cli/#run). + +* A new flag, `--add-host`, has been added to `docker run` that lets you add +lines to `/etc/hosts`. This allows you to specify different name resolution for +the container than it would get via DNS. For more information, see the [command +line reference](/reference/commandline/cli/#run). + +* You can now set a `DOCKER_TLS_VERIFY` environment variable to secure +connections by default (rather than having to pass the `--tlsverify` flag on +every call). For more information, see the [https guide](/articles/https). + +* Three security issues have been addressed in this release: [CVE-2014-5280, +CVE-2014-5270, and +CVE-2014-5282](https://groups.google.com/forum/#!msg/docker-announce/aQoVmQlcE0A/smPuBNYf8VwJ). + +##Version 1.2.0 + +This version fixes a number of bugs and issues and adds new functions and other +improvements. These include: + +###New Features + +*New restart policies* + +We added a `--restart flag` to `docker run` to specify a restart policy for your +container. Currently, there are three policies available: + +* `no` – Do not restart the container if it dies. (default) * `on-failure` – +Restart the container if it exits with a non-zero exit code. This can also +accept an optional maximum restart count (e.g. `on-failure:5`). * `always` – +Always restart the container no matter what exit code is returned. This +deprecates the `--restart` flag on the Docker daemon. + +*New flags for `docker run`: `--cap-add` and `–-cap-drop`* + +In previous releases, Docker containers could either be given complete +capabilities or they could all follow a whitelist of allowed capabilities while +dropping all others. Further, using `--privileged` would grant all capabilities +inside a container, rather than applying a whitelist. This was not recommended +for production use because it’s really unsafe; it’s as if you were directly in +the host. + +This release introduces two new flags for `docker run`, `--cap-add` and +`--cap-drop`, that give you fine-grain control over the specific capabilities +you want grant to a particular container. + +*New `-–device` flag for `docker run`* + +Previously, you could only use devices inside your containers by bind mounting +them (with `-v`) in a `--privileged` container. With this release, we introduce +the `--device flag` to `docker run` which lets you use a device without +requiring a privileged container. + +*Writable `/etc/hosts`, `/etc/hostname` and `/etc/resolv.conf`* + +You can now edit `/etc/hosts`, `/etc/hostname` and `/etc/resolve.conf` in a +running container. This is useful if you need to install BIND or other services +that might override one of those files. + +Note, however, that changes to these files are not saved when running `docker +build` and so will not be preserved in the resulting image. The changes will +only “stick” in a running container. + +*Docker proxy in a separate process* + +The Docker userland proxy that routes outbound traffic to your containers now +has its own separate process (one process per connection). This greatly reduces +the load on the daemon, which increases stability and efficiency. + +###Other improvements & changes + +* When using `docker rm -f`, Docker now kills the container (instead of stopping +it) before removing it . If you intend to stop the container cleanly, you can +use `docker stop`. + +* Added support for IPv6 addresses in `--dns` + +* Added search capability in private registries + +##Version 1.1.0 + +###New Features + +*`.dockerignore` support* + +You can now add a `.dockerignore` file next to your `Dockerfile` and Docker will +ignore files and directories specified in that file when sending the build +context to the daemon. Example: +https://github.com/docker/docker/blob/master/.dockerignore + +*Pause containers during commit* + +Doing a commit on a running container was not recommended because you could end +up with files in an inconsistent state (for example, if they were being written +during the commit). Containers are now paused when a commit is made to them. You +can disable this feature by doing a `docker commit --pause=false ` + +*Tailing logs* + +You can now tail the logs of a container. For example, you can get the last ten +lines of a log by using `docker logs --tail 10 `. You can also +follow the logs of a container without having to read the whole log file with +`docker logs --tail 0 -f `. + +*Allow a tar file as context for docker build* + +You can now pass a tar archive to `docker build` as context. This can be used to +automate docker builds, for example: `cat context.tar | docker build -` or +`docker run builder_image | docker build -` + +*Bind mounting your whole filesystem in a container* + +`/` is now allowed as source of `--volumes`. This means you can bind-mount your +whole system in a container if you need to. For example: `docker run -v +/:/my_host ubuntu:ro ls /my_host`. However, it is now forbidden to mount to /. + + +###Other Improvements & Changes + +* Port allocation has been improved. In the previous release, Docker could +prevent you from starting a container with previously allocated ports which +seemed to be in use when in fact they were not. This has been fixed. + +* A bug in `docker save` was introduced in the last release. The `docker save` +command could produce images with invalid metadata. The command now produces +images with correct metadata. + +* Running `docker inspect` in a container now returns which containers it is +linked to. + +* Parsing of the `docker commit` flag has improved validation, to better prevent +you from committing an image with a name such as `-m`. Image names with dashes +in them potentially conflict with command line flags. + +* The API now has Improved status codes for `start` and `stop`. Trying to start +a running container will now return a 304 error. + +* Performance has been improved overall. Starting the daemon is faster than in +previous releases. The daemon’s performance has also been improved when it is +working with large numbers of images and containers. + +* Fixed an issue with white-spaces and multi-lines in Dockerfiles. + +##Version 1.1.0 + +###New Features + +*`.dockerignore` support* + +You can now add a `.dockerignore` file next to your `Dockerfile` and Docker will +ignore files and directories specified in that file when sending the build +context to the daemon. Example: +https://github.com/dotcloud/docker/blob/master/.dockerignore + +*Pause containers during commit* + +Doing a commit on a running container was not recommended because you could end +up with files in an inconsistent state (for example, if they were being written +during the commit). Containers are now paused when a commit is made to them. You +can disable this feature by doing a `docker commit --pause=false ` + +*Tailing logs* + +You can now tail the logs of a container. For example, you can get the last ten +lines of a log by using `docker logs --tail 10 `. You can also +follow the logs of a container without having to read the whole log file with +`docker logs --tail 0 -f `. + +*Allow a tar file as context for docker build* + +You can now pass a tar archive to `docker build` as context. This can be used to +automate docker builds, for example: `cat context.tar | docker build -` or +`docker run builder_image | docker build -` + +*Bind mounting your whole filesystem in a container* + +`/` is now allowed as source of `--volumes`. This means you can bind-mount your +whole system in a container if you need to. For example: `docker run -v +/:/my_host ubuntu:ro ls /my_host`. However, it is now forbidden to mount to /. + + +###Other Improvements & Changes + +* Port allocation has been improved. In the previous release, Docker could +prevent you from starting a container with previously allocated ports which +seemed to be in use when in fact they were not. This has been fixed. + +* A bug in `docker save` was introduced in the last release. The `docker save` +command could produce images with invalid metadata. The command now produces +images with correct metadata. + +* Running `docker inspect` in a container now returns which containers it is +linked to. + +* Parsing of the `docker commit` flag has improved validation, to better prevent +you from committing an image with a name such as `-m`. Image names with dashes +in them potentially conflict with command line flags. + +* The API now has Improved status codes for `start` and `stop`. Trying to start +a running container will now return a 304 error. + +* Performance has been improved overall. Starting the daemon is faster than in +previous releases. The daemon’s performance has also been improved when it is +working with large numbers of images and containers. + +* Fixed an issue with white-spaces and multi-lines in Dockerfiles. + +##Version 1.0.0 + +First production-ready release. Prior development history can be found by +searching in [GitHub](https://github.com/docker/docker).