Build Daphne for tests.

Now, rather than using a pre-compiled version of Daphne that we build
into a conatiner using our own custom build process, we build & use the
Daphne test container defined in the Daphne repository itself.

monolithic_integration_test/Cargo.toml

@@ -21,7 +21,7 @@ kube-openssl = ["kube/openssl-tls"]
 
 [dependencies]
 backoff = { version = "0.4", features = ["tokio"] }
-daphne = { git = "https://github.com/cloudflare/daphne", rev = "2f042113af8df7527c1761490cea40139952ad5e", optional = true }  # Match this to the compiled version referenced in README.md.
+daphne = { git = "https://github.com/cloudflare/daphne", rev = "6228556c7b87a7fe85e414a3186a2511407896f0", optional = true }  # Match this to the version referenced in README.md.
 futures = "0.3.23"
 hex = { version = "0.4", optional = true }
 interop_binaries = { path = "../interop_binaries", features = ["testcontainer"] }
@@ -50,3 +50,4 @@ prio = "0.8.2"
 
 [build-dependencies]
 build_script_utils = { path = "../build_script_utils", optional = true }
+tempfile = "3"

monolithic_integration_test/README.md

@@ -3,70 +3,23 @@
 ## Daphne
 
 The [Daphne](https://github.com/cloudflare/daphne) testing functionality is implemented by running a
-WASM-compiled version of Daphne inside [miniflare](https://miniflare.dev), inside a container. The
-compiled artifacts are included in `artifacts/daphne_compiled`; the test container is built by the
-build script & included in necessary test binaries which know how to load the image into Docker
-themselves.
+compiled version of Daphne inside a container. The test container is built by this package's build
+script based on the test Dockerfile in the Daphne repository; the test container is included in
+necessary test binaries which know how to load the image into Docker themselves.
 
-The compiled Daphne is from commit [`2f042113af8df7527c1761490cea40139952ad5e`](
-https://github.com/cloudflare/daphne/commit/2f042113af8df7527c1761490cea40139952ad5e).
+Daphne is compiled from commit [`6228556c7b87a7fe85e414a3186a2511407896f0`](
+https://github.com/cloudflare/daphne/commit/6228556c7b87a7fe85e414a3186a2511407896f0).
 
 ### Running Daphne integration tests
 
 First, make sure your workstation is set up per the instructions in the repository root's README.md.
 
-Once `docker` is installed, simply run `cargo test` to run the Daphne integration tests.
+Then, run `cargo test` to run the Daphne integration tests.
 
 ### Updating the version of Daphne under test
 
-Compiling a new version of Daphne requires having [wrangler](https://github.com/cloudflare/wrangler)
-installed.
-
 To update the version of Daphne in use:
 
-1. Update `Cargo.toml` in this directory to reference the new version of Daphne.
-1. Check out the [Daphne repository](https://github.com/cloudflare/daphne) at the desired version,
-   and switch into the repository's `daphne_worker_test` directory.
-1. Run `worker-build`; this will compile Daphne to WASM & place the results into the `build`
-   directory.
-1. Replace the content of `monolithic_integration_test/artifacts/daphne_compiled` in the Janus
-   repository with the content of `daphne_worker_test/build/worker` from the Daphne repository.
-1. Update this README to note the Daphne commit used to generate these artifacts.
-
-### License
-
-The contents of `artifacts/daphne_compiled` are a compiled artifact of the
-[Daphne](https://github.com/cloudflare/daphne) project, which is licensed under the [BSD 3-Clause
-License](https://github.com/cloudflare/daphne/blob/2f042113af8df7527c1761490cea40139952ad5e/LICENSE),
-reproduced below:
-
-```
-BSD 3-Clause License
-
-Copyright (c) 2022, Cloudflare Inc.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are met:
-
-1. Redistributions of source code must retain the above copyright notice, this
-   list of conditions and the following disclaimer.
-
-2. Redistributions in binary form must reproduce the above copyright notice,
-   this list of conditions and the following disclaimer in the documentation
-   and/or other materials provided with the distribution.
-
-3. Neither the name of the copyright holder nor the names of its
-   contributors may be used to endorse or promote products derived from
-   this software without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
-FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
-SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
-CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-```
+1. Update `Cargo.toml` in this directory to reference the new commit of Daphne.
+1. Update `build.rs` in this directory to reference the new commit of Daphne.
+1. Update this README to note the new commit of Daphne.