Escape dollar signs
If this example was copied and pasted, the shell would try to interpolate `$upstream_http_docker_distribution_api_version` and `$docker_distribution_api_version`. Signed-off-by: Andrew Meredith <andymeredith@gmail.com>
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@ -74,7 +74,7 @@ upstream docker-registry {
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## The registry always sets this header.
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## In the case of nginx performing auth, the header will be unset
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## since nginx is auth-ing before proxying.
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map $upstream_http_docker_distribution_api_version $docker_distribution_api_version {
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map \$upstream_http_docker_distribution_api_version \$docker_distribution_api_version {
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'registry/2.0' '';
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default registry/2.0;
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}
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