Update docs site for version 2.19.0rc5 (#131)

Docs from
https://github.com/pantsbuild/pants/releases/tag/release_2.19.0rc5

versioned_docs/version-2.19/docs/docker/index.mdx

@@ -182,38 +182,32 @@ Secrets should not be checked into version control. Use absolute paths to refere
 See the example for the [`secrets`](../../reference/targets/docker_image.mdx#secrets) field.
 :::
 
-### External cache storage backends
+### Buildx Support
 
-BuildKit supports exporting build cache to an external location, making it possible to import in future builds. Cache backends can be configured using the [`cache_to`](../../reference/targets/docker_image.mdx#cache_to) and [`cache_from`](../../reference/targets/docker_image.mdx#cache_from) fields.
+Buildx (using BuildKit) supports exporting build cache to an external location, making it possible to import in future builds. Cache backends can be configured using the [`cache_to`](../../reference/targets/docker_image.mdx#cache_to) and [`cache_from`](../../reference/targets/docker_image.mdx#cache_from) fields.
 
-Create a builder using a [build driver](https://docs.docker.com/build/drivers/) that is compatible with the cache backend:
-
-```
-❯ docker buildx create --name container --driver=docker-container container
-```
-
-Use the builder:
-
-```
-❯ export BUILDX_BUILDER=container
+To use BuildKit with Pants, enable the [Containerd Image Store](https://docs.docker.com/desktop/containerd/), either via [Docker Desktop settings](https://docs.docker.com/storage/containerd/) or by [setting daemon config](https://docs.docker.com/storage/containerd/#enable-containerd-image-store-on-docker-engine):
+```json
+{
+  "features": {
+    "containerd-snapshotter": true
+  }
+}
 ```
 
-Optionally, validate a build with the Docker CLI directly:
+Optionally, run a build with the Docker CLI directly to validate buildx support on your system:
 
 ```
 ❯ docker buildx build -t pants-cache-test:latest \
   --cache-to type=local,dest=/tmp/docker/pants-test-cache \
   --cache-from type=local,src=/tmp/docker/pants-test-cache .
 ```
 
-Configure Pants to use buildx and pass the BUILDX_BUILDER environment variable:
+Configure Pants to use buildx:
 
 ```toml tab={"label":"pants.toml"}
 [docker]
 use_buildx = true
-env_vars = [
-  "BUILDX_BUILDER"
-]
 ```
 
 ```python tab={"label":"example/BUILD"}
@@ -230,6 +224,8 @@ docker_image(
 )
 ```
 
+For working examples, including multi-platform builds with Github Actions, refer to the [example-docker](https://github.com/pantsbuild/example-docker) repository.
+
 ### Build Docker image example
 
 This example copies both a `file` and `pex_binary`. The file is specified as an explicit dependency in the `BUILD` file, whereas the `pex_binary` dependency is inferred from the path in the `Dockerfile`.

versioned_docs/version-2.19/docs/getting-started/initial-configuration.mdx

@@ -9,7 +9,7 @@ Creating the configuration necessary to run Pants.
 
 To get started in a new repository, follow these steps, and then visit one of the language-specific overview pages.
 
-1. # Create `pants.toml`
+## 1. Create `pants.toml`
 
 Pants configuration lives in a file called `pants.toml` in the root of the repo. This file uses the [TOML](https://github.com/toml-lang/toml) format.
 
@@ -22,7 +22,7 @@ pants_version = "$PANTS_VERSION"
 
 where `$PANTS_VERSION` is the version of Pants that you want to pin your repo to. When you'd like to upgrade Pants, edit `pants_version` and the `pants` script will self-update on the next run.
 
-2. # Configure source roots
+## 2. Configure source roots
 
 Many languages organize code in a package hierarchy, so that the relative location of a source file on the filesystem corresponds to a logical package name. The directories that correspond to the roots of the language's package hierarchy are referred to as [source roots](../using-pants/key-concepts/source-roots.mdx). These are the filesystem locations from which import paths are computed.
 
@@ -38,7 +38,7 @@ If your project has a different structure, see [Source roots](../using-pants/key
 Golang projects already use `go.mod` to indicate source roots.
 :::
 
-3. # Enable backends
+## 3. Enable backends
 
 Most Pants functionality is provided via pluggable [_backends_](../using-pants/key-concepts/backends.mdx), which are activated by adding to the `[GLOBAL].backend_packages` option like this:
 
@@ -54,7 +54,7 @@ backend_packages = [
 
 See [here](../using-pants/key-concepts/backends.mdx) for a list of available backends.
 
-4. # Update `.gitignore`
+## 4. Update `.gitignore`
 
 If you use Git, we recommend adding these lines to your top-level `.gitignore` file:
 
@@ -68,7 +68,7 @@ If you use Git, we recommend adding these lines to your top-level `.gitignore` f
 The `pants_ignore` option tells Pants which files to avoid looking at, but it additionally ignores all `.gitignore`d files by default. Occasionally, you will want to ignore something with Git, but still want Pants to work on the file. See [Troubleshooting / common issues](../using-pants/troubleshooting-common-issues.mdx) for how to do this.
 :::
 
-5. # Generate BUILD files
+## 5. Generate BUILD files
 
 Once you have enabled the backends for the language(s) you'd like to use, run [`pants tailor ::`](./initial-configuration.mdx#5-generate-build-files) to generate an initial set of [BUILD](../using-pants/key-concepts/targets-and-build-files.mdx) files.
 
@@ -106,6 +106,6 @@ To fix `tailor` failures, run `pants tailor`.
 
 :::
 
-6. # Visit a language specific overview
+## 6. Visit a language specific overview
 
 You're almost ready to go! Next up is visiting one of the language-specific overviews listed below.

versioned_docs/version-2.19/reference/goals/go-dump-import-path-mapping.mdx

@@ -0,0 +1,41 @@
+---
+title: go-dump-import-path-mapping
+description: |
+  Dump import paths mapped to package addresses.
+---
+
+import Option from "@site/src/components/reference/Option";
+import styles from "@site/src/components/reference/styles.module.css";
+
+---
+
+```
+pants go-dump-import-path-mapping [args]
+```
+
+Dump import paths mapped to package addresses.
+
+Backend: <span className="color--primary">`pants.backend.experimental.go.debug_goals`</span>
+
+Config section: <span className="color--primary">`[go-dump-import-path-mapping]`</span>
+
+<span className={styles.options}>
+
+## Basic options
+
+None
+
+## Advanced options
+
+None
+
+## Deprecated options
+
+None
+
+## Related subsystems
+
+- [environments-preview](../subsystems/environments-preview.mdx)
+- [filter](../subsystems/filter.mdx)
+
+</span>

versioned_docs/version-2.19/reference/goals/go-export-cgo-codegen.mdx

@@ -0,0 +1,44 @@
+---
+title: go-export-cgo-codegen
+description: |
+  Export files generated by Cgo.
+---
+
+import Option from "@site/src/components/reference/Option";
+import styles from "@site/src/components/reference/styles.module.css";
+
+---
+
+```
+pants go-export-cgo-codegen [args]
+```
+
+Export files generated by Cgo.
+
+Backend: <span className="color--primary">`pants.backend.experimental.go.debug_goals`</span>
+
+Config section: <span className="color--primary">`[go-export-cgo-codegen]`</span>
+
+<span className={styles.options}>
+
+## Basic options
+
+None
+
+## Advanced options
+
+None
+
+## Deprecated options
+
+None
+
+## Related subsystems
+
+- [environments-preview](../subsystems/environments-preview.mdx)
+- [filter](../subsystems/filter.mdx)
+- [go-test](../subsystems/go-test.mdx)
+- [golang](../subsystems/golang.mdx)
+- [system-binaries](../subsystems/system-binaries.mdx)
+
+</span>

versioned_docs/version-2.19/reference/goals/go-show-package-analysis.mdx

@@ -0,0 +1,44 @@
+---
+title: go-show-package-analysis
+description: |
+  Show the package analysis for Go package targets.
+---
+
+import Option from "@site/src/components/reference/Option";
+import styles from "@site/src/components/reference/styles.module.css";
+
+---
+
+```
+pants go-show-package-analysis [args]
+```
+
+Show the package analysis for Go package targets.
+
+Backend: <span className="color--primary">`pants.backend.experimental.go.debug_goals`</span>
+
+Config section: <span className="color--primary">`[go-show-package-analysis]`</span>
+
+<span className={styles.options}>
+
+## Basic options
+
+None
+
+## Advanced options
+
+None
+
+## Deprecated options
+
+None
+
+## Related subsystems
+
+- [environments-preview](../subsystems/environments-preview.mdx)
+- [filter](../subsystems/filter.mdx)
+- [go-test](../subsystems/go-test.mdx)
+- [golang](../subsystems/golang.mdx)
+- [system-binaries](../subsystems/system-binaries.mdx)
+
+</span>

versioned_docs/version-2.19/reference/goals/java-dump-source-analysis.mdx

@@ -0,0 +1,45 @@
+---
+title: java-dump-source-analysis
+description: |
+  Dump source analysis for java_source[s] targets.
+---
+
+import Option from "@site/src/components/reference/Option";
+import styles from "@site/src/components/reference/styles.module.css";
+
+---
+
+```
+pants java-dump-source-analysis [args]
+```
+
+Dump source analysis for java_source[s] targets.
+
+Backend: <span className="color--primary">`pants.backend.experimental.java.debug_goals`</span>
+
+Config section: <span className="color--primary">`[java-dump-source-analysis]`</span>
+
+<span className={styles.options}>
+
+## Basic options
+
+None
+
+## Advanced options
+
+None
+
+## Deprecated options
+
+None
+
+## Related subsystems
+
+- [coursier](../subsystems/coursier.mdx)
+- [environments-preview](../subsystems/environments-preview.mdx)
+- [filter](../subsystems/filter.mdx)
+- [jvm](../subsystems/jvm.mdx)
+- [python-bootstrap](../subsystems/python-bootstrap.mdx)
+- [system-binaries](../subsystems/system-binaries.mdx)
+
+</span>

versioned_docs/version-2.19/reference/goals/jvm-symbol-map.mdx

@@ -0,0 +1,43 @@
+---
+title: jvm-symbol-map
+description: |
+  Dump the JVM dependency inference symbol mapping.
+---
+
+import Option from "@site/src/components/reference/Option";
+import styles from "@site/src/components/reference/styles.module.css";
+
+---
+
+```
+pants jvm-symbol-map [args]
+```
+
+Dump the JVM dependency inference symbol mapping.
+
+Backend: <span className="color--primary">`pants.backend.experimental.java.debug_goals`</span>
+
+Config section: <span className="color--primary">`[jvm-symbol-map]`</span>
+
+<span className={styles.options}>
+
+## Basic options
+
+None
+
+## Advanced options
+
+None
+
+## Deprecated options
+
+None
+
+## Related subsystems
+
+- [environments-preview](../subsystems/environments-preview.mdx)
+- [filter](../subsystems/filter.mdx)
+- [java-infer](../subsystems/java-infer.mdx)
+- [jvm](../subsystems/jvm.mdx)
+
+</span>

versioned_docs/version-2.19/reference/goals/kotlin-dump-source-analysis.mdx

@@ -0,0 +1,45 @@
+---
+title: kotlin-dump-source-analysis
+description: |
+  Dump source analysis for kotlin_source targets.
+---
+
+import Option from "@site/src/components/reference/Option";
+import styles from "@site/src/components/reference/styles.module.css";
+
+---
+
+```
+pants kotlin-dump-source-analysis [args]
+```
+
+Dump source analysis for kotlin_source targets.
+
+Backend: <span className="color--primary">`pants.backend.experimental.kotlin.debug_goals`</span>
+
+Config section: <span className="color--primary">`[kotlin-dump-source-analysis]`</span>
+
+<span className={styles.options}>
+
+## Basic options
+
+None
+
+## Advanced options
+
+None
+
+## Deprecated options
+
+None
+
+## Related subsystems
+
+- [coursier](../subsystems/coursier.mdx)
+- [environments-preview](../subsystems/environments-preview.mdx)
+- [filter](../subsystems/filter.mdx)
+- [jvm](../subsystems/jvm.mdx)
+- [python-bootstrap](../subsystems/python-bootstrap.mdx)
+- [system-binaries](../subsystems/system-binaries.mdx)
+
+</span>