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package integration
import (
"encoding/json"
"net/http"
"os"
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"strings"
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"time"
"github.com/go-check/check"
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"github.com/traefik/traefik/v3/integration/try"
"github.com/traefik/traefik/v3/pkg/api"
"github.com/traefik/traefik/v3/pkg/testhelpers"
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checker "github.com/vdemeester/shakers"
)
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// Docker tests suite.
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type DockerComposeSuite struct {
BaseSuite
}
func ( s * DockerComposeSuite ) SetUpSuite ( c * check . C ) {
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s . createComposeProject ( c , "minimal" )
s . composeUp ( c )
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}
func ( s * DockerComposeSuite ) TestComposeScale ( c * check . C ) {
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tempObjects := struct {
DockerHost string
DefaultRule string
} {
DockerHost : s . getDockerHost ( ) ,
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DefaultRule : "Host(`{{ normalize .Name }}.docker.localhost`)" ,
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}
file := s . adaptFile ( c , "fixtures/docker/minimal.toml" , tempObjects )
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defer os . Remove ( file )
cmd , display := s . traefikCmd ( withConfigFile ( file ) )
defer display ( c )
err := cmd . Start ( )
c . Assert ( err , checker . IsNil )
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defer s . killCmd ( cmd )
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req := testhelpers . MustNewRequest ( http . MethodGet , "http://127.0.0.1:8000/whoami" , nil )
req . Host = "my.super.host"
_ , err = try . ResponseUntilStatusCode ( req , 1500 * time . Millisecond , http . StatusOK )
c . Assert ( err , checker . IsNil )
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resp , err := http . Get ( "http://127.0.0.1:8080/api/rawdata" )
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c . Assert ( err , checker . IsNil )
defer resp . Body . Close ( )
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var rtconf api . RunTimeRepresentation
err = json . NewDecoder ( resp . Body ) . Decode ( & rtconf )
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c . Assert ( err , checker . IsNil )
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// check that we have only three routers (the one from this test + 2 unrelated internal ones)
c . Assert ( rtconf . Routers , checker . HasLen , 3 )
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// check that we have only one service (not counting the internal ones) with n servers
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services := rtconf . Services
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c . Assert ( services , checker . HasLen , 4 )
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for name , service := range services {
if strings . HasSuffix ( name , "@internal" ) {
continue
}
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c . Assert ( name , checker . Equals , "whoami1-" + s . composeProject . Name + "@docker" )
c . Assert ( service . LoadBalancer . Servers , checker . HasLen , 2 )
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// We could break here, but we don't just to keep us honest.
}
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}