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25bef2d8f9
The library does not depend on stdenv, that `stdenv` exposes `lib` is an artifact of the ancient origins of nixpkgs.
90 lines
2.4 KiB
Nix
90 lines
2.4 KiB
Nix
import ./make-test-python.nix ({ pkgs, ...} :
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let
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backend = { pkgs, ... }: {
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services.httpd = {
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enable = true;
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adminAddr = "foo@example.org";
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virtualHosts.localhost.documentRoot = "${pkgs.valgrind.doc}/share/doc/valgrind/html";
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};
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networking.firewall.allowedTCPPorts = [ 80 ];
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};
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in {
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name = "proxy";
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meta = with pkgs.lib.maintainers; {
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maintainers = [ eelco ];
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};
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nodes = {
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proxy = { nodes, ... }: {
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services.httpd = {
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enable = true;
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adminAddr = "bar@example.org";
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extraModules = [ "proxy_balancer" "lbmethod_byrequests" ];
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extraConfig = ''
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ExtendedStatus on
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'';
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virtualHosts.localhost = {
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extraConfig = ''
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<Location /server-status>
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Require all granted
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SetHandler server-status
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</Location>
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<Proxy balancer://cluster>
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Require all granted
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BalancerMember http://${nodes.backend1.config.networking.hostName} retry=0
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BalancerMember http://${nodes.backend2.config.networking.hostName} retry=0
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</Proxy>
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ProxyStatus full
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ProxyPass /server-status !
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ProxyPass / balancer://cluster/
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ProxyPassReverse / balancer://cluster/
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# For testing; don't want to wait forever for dead backend servers.
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ProxyTimeout 5
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'';
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};
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};
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networking.firewall.allowedTCPPorts = [ 80 ];
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};
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backend1 = backend;
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backend2 = backend;
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client = { ... }: { };
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};
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testScript = ''
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start_all()
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proxy.wait_for_unit("httpd")
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backend1.wait_for_unit("httpd")
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backend2.wait_for_unit("httpd")
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client.wait_for_unit("network.target")
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# With the back-ends up, the proxy should work.
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client.succeed("curl --fail http://proxy/")
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client.succeed("curl --fail http://proxy/server-status")
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# Block the first back-end.
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backend1.block()
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# The proxy should still work.
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client.succeed("curl --fail http://proxy/")
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client.succeed("curl --fail http://proxy/")
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# Block the second back-end.
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backend2.block()
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# Now the proxy should fail as well.
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client.fail("curl --fail http://proxy/")
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# But if the second back-end comes back, the proxy should start
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# working again.
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backend2.unblock()
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client.succeed("curl --fail http://proxy/")
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'';
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})
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