Baoyuantop commented on issue #7223:
URL: https://github.com/apache/apisix/issues/7223#issuecomment-4043785872
This issue stems from a design limitation of the Nginx env directive—it
doesn't support environment variables with values containing spaces or
newlines. APISIX directly includes `env NAME=VALUE;` in the generated
nginx.conf file, and Nginx doesn't provide any quotation/escaping mechanism to
handle values containing spaces.
Possible Workarounds:
1. Avoid directly injecting certificate content via `${{VAR}}`. Instead, use
a multi-line YAML string (using the `|` syntax) to inline the certificate
content in `apisix.yaml`.
2. The hotfix idea provided by @boekkooi-lengoo in the comments: Write only
the environment variable name (without the value) in `ops.lua` to the `env`
directive in `nginx.conf` (i.e., `env CCERT;`), allowing nginx to read the
value from the process environment at runtime.
3. Use an SSL object + `client_cert_id` to indirectly reference the
certificate.
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