chore: refactor server into server crate

[rjzak]

Addresses #134, but doesn't close it, since this just reorganizes the test, but doesn't change them.

Inspired by Tokio's unit tests tokio-rs/tokio/tests.

Signed-off-by: Richard Zak [email protected]

[rjzak]

After this, I'll:

• Create a test which does the attestation of the signed CSRs based on attestation config
• Remove old CSRs, so non-debug mode can be tested

[rvolosatovs]

If we're still working on structure, can we just move all tests into one big tests/integration.rs? (and then we can either drop the isolated unit tests or move them to where they belong)

[rvolosatovs]

I don't think the commit message/PR title matches what this PR is now doing.
This is simply extracting the server implementation into its own crate. Please change the PR title and commit message to reflect that.

[rjzak]

@rvolosatovs commit message and title reworded

[rvolosatovs]

Merged in 31ecb62
with the following diff:

diff --git a/Cargo.toml b/Cargo.toml
index 062699c..ce07a86 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,12 +10,12 @@ license = "AGPL-3.0"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-attestation = { path = "crates/attestation", features = ["sgx", "snp"] }
-steward-server = { path = "crates/server" }
 anyhow = { version = "^1.0.66", default-features = false }
+attestation = { path = "crates/attestation", features = ["sgx", "snp"] }
 axum = { version = "^0.5.17", features = ["headers"], default-features = false }
 clap = { version = "^4.0.29", features = ["help", "usage", "error-context", "std", "derive", "env"], default-features = false }
 confargs = { version = "^0.1.3", default-features = false }
+steward-server = { path = "crates/server" }
 tokio = { version = "^1.23.0", features = ["rt", "macros"], default-features = false }
 tower-http = { version = "^0.3.5", features = ["trace"], default-features = false }
 tracing = { version = "^0.1.29", default-features = false }
diff --git a/crates/server/Cargo.toml b/crates/server/Cargo.toml
index 143c083..b892af0 100644
--- a/crates/server/Cargo.toml
+++ b/crates/server/Cargo.toml
@@ -6,8 +6,8 @@ license = "AGPL-3.0"
 description = "Server library for Steward"
 
 [dependencies]
-attestation = { path = "../../crates/attestation", features = ["sgx", "snp"] }
 anyhow = { version = "^1.0.66", default-features = false }
+attestation = { path = "../../crates/attestation", features = ["sgx", "snp"] }
 axum = { version = "^0.5.17", features = ["headers"], default-features = false }
 const-oid = { version = "0.9.1", features = ["db"], default-features = false }
 der = { version = "0.6", features = ["std"], default-features = false }
@@ -30,5 +30,5 @@ http = { version = "^0.2.6", default-features = false }
 memoffset = { version = "0.7.1", default-features = false }
 rstest = { version = "0.16", default-features = false }
 sgx = { version = "0.6.0", default-features = false }
-tower = { version = "^0.4.11", features = ["util"], default-features = false }
 testaso = { version = "0.1", default-features = false }
+tower = { version = "^0.4.11", features = ["util"], default-features = false }