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otel: Add OpenTelemetry functionality to NGINX Unit #1463

Merged
merged 6 commits into from
Nov 12, 2024
Merged

otel: Add OpenTelemetry functionality to NGINX Unit #1463

merged 6 commits into from
Nov 12, 2024

Commits on Nov 12, 2024

  1. otel: add opentelemetry rust crate code 

    This is purely the source code of the rust end of opentelemetry. It does
not have build tooling wired up yet, nor is this used from the C code.

Signed-off-by: Ava Hahn <[email protected]>
Signed-off-by: Gabor Javorszky <[email protected]>
    @avahahn @javorszky
    avahahn authored and javorszky committed Nov 12, 2024
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  2. otel: add build tooling to include otel code 

    Adds the --otel flag to the configure command and the various build time
variables and checks that are needed in this flow.

It also includes the nxt_otel.c and nxt_otel.h files that are needed for
the rest of Unit to talk to the compiled static library that's generated
from the rust crate.

Signed-off-by: Ava Hahn <[email protected]>
Co-authored-by: Gabor Javorszky <[email protected]>
Signed-off-by: Gabor Javorszky <[email protected]>
    @avahahn @javorszky
    avahahn and javorszky committed Nov 12, 2024
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  3. otel: add header parsing and test call state 

    Enables Unit to parse the tracestate and traceparent headers and add it
to the list, as well as calls to nxt_otel_test_and_call_state.

Signed-off-by: Ava Hahn <[email protected]>
Signed-off-by: Gabor Javorszky <[email protected]>
    @avahahn @javorszky
    avahahn authored and javorszky committed Nov 12, 2024
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  4. otel: configuration items and their validation 

    Adds code responsible for users to apply the `telemetry` configuration
options.

configuration snippet as follows:
{
    "settings": {
        "telemetry": {
            "batch_size": 20,
            "endpoint": "http://lgtm:4318/v1/traces",
            "protocol": "http",
            "sampling_ratio": 1
        }
    },
    "listeners": {
        "*:80": {
            "pass": "routes"
        }
    },
    "routes": [
        {
            "match": {
                "headers": {
                    "accept": "*text/html*"
                }
            },
            "action": {
                "share": "/usr/share/unit/welcome/welcome.html"
            }
        },
        {
            "action": {
                "share": "/usr/share/unit/welcome/welcome.md"
            }
        }
    ]
}

Signed-off-by: Ava Hahn <[email protected]>
Signed-off-by: Gabor Javorszky <[email protected]>
    @avahahn @javorszky
    avahahn authored and javorszky committed Nov 12, 2024
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  5. .editorconfig: fix bracket balance of editorconfig file 

    Tiny bracket balance fix.

Signed-off-by: Ava Hahn <[email protected]>
Signed-off-by: Gabor Javorszky <[email protected]>
    @javorszky
    javorszky committed Nov 12, 2024
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  6. docs/openapi: update OpenAPI references 

    These changes are generated by the openapi generator through a make
command.

Signed-off-by: Ava Hahn <[email protected]>
Signed-off-by: Gabor Javorszky <[email protected]>
    @avahahn @javorszky
    avahahn authored and javorszky committed Nov 12, 2024
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