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moby--moby/integration-cli/docker_cli_build_unix_test.go

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// +build !windows
package main
import (
"encoding/json"
"strings"
"github.com/docker/docker/pkg/integration/checker"
"github.com/docker/docker/pkg/ulimit"
"github.com/go-check/check"
)
func (s *DockerSuite) TestBuildResourceConstraintsAreUsed(c *check.C) {
testRequires(c, cpuCfsQuota)
name := "testbuildresourceconstraints"
ctx, err := fakeContext(`
FROM hello-world:frozen
RUN ["/hello"]
`, map[string]string{})
c.Assert(err, checker.IsNil)
dockerCmdInDir(c, ctx.Dir, "build", "--no-cache", "--rm=false", "--memory=64m", "--memory-swap=-1", "--cpuset-cpus=0", "--cpuset-mems=0", "--cpu-shares=100", "--cpu-quota=8000", "--ulimit", "nofile=42", "-t", name, ".")
out, _ := dockerCmd(c, "ps", "-lq")
cID := strings.TrimSpace(out)
type hostConfig struct {
Memory int64
MemorySwap int64
CpusetCpus string
CpusetMems string
CPUShares int64
CPUQuota int64
Ulimits []*ulimit.Ulimit
}
cfg, err := inspectFieldJSON(cID, "HostConfig")
c.Assert(err, checker.IsNil)
var c1 hostConfig
err = json.Unmarshal([]byte(cfg), &c1)
c.Assert(err, checker.IsNil, check.Commentf(cfg))
c.Assert(c1.Memory, checker.Equals, int64(64*1024*1024), check.Commentf("resource constraints not set properly for Memory"))
c.Assert(c1.MemorySwap, checker.Equals, int64(-1), check.Commentf("resource constraints not set properly for MemorySwap"))
c.Assert(c1.CpusetCpus, checker.Equals, "0", check.Commentf("resource constraints not set properly for CpusetCpus"))
c.Assert(c1.CpusetMems, checker.Equals, "0", check.Commentf("resource constraints not set properly for CpusetMems"))
c.Assert(c1.CPUShares, checker.Equals, int64(100), check.Commentf("resource constraints not set properly for CPUShares"))
c.Assert(c1.CPUQuota, checker.Equals, int64(8000), check.Commentf("resource constraints not set properly for CPUQuota"))
c.Assert(c1.Ulimits[0].Name, checker.Equals, "nofile", check.Commentf("resource constraints not set properly for Ulimits"))
c.Assert(c1.Ulimits[0].Hard, checker.Equals, int64(42), check.Commentf("resource constraints not set properly for Ulimits"))
// Make sure constraints aren't saved to image
dockerCmd(c, "run", "--name=test", name)
cfg, err = inspectFieldJSON("test", "HostConfig")
c.Assert(err, checker.IsNil)
var c2 hostConfig
err = json.Unmarshal([]byte(cfg), &c2)
c.Assert(err, checker.IsNil, check.Commentf(cfg))
c.Assert(c2.Memory, check.Not(checker.Equals), int64(64*1024*1024), check.Commentf("resource leaked from build for Memory"))
c.Assert(c2.MemorySwap, check.Not(checker.Equals), int64(-1), check.Commentf("resource leaked from build for MemorySwap"))
c.Assert(c2.CpusetCpus, check.Not(checker.Equals), "0", check.Commentf("resource leaked from build for CpusetCpus"))
c.Assert(c2.CpusetMems, check.Not(checker.Equals), "0", check.Commentf("resource leaked from build for CpusetMems"))
c.Assert(c2.CPUShares, check.Not(checker.Equals), int64(100), check.Commentf("resource leaked from build for CPUShares"))
c.Assert(c2.CPUQuota, check.Not(checker.Equals), int64(8000), check.Commentf("resource leaked from build for CPUQuota"))
c.Assert(c2.Ulimits, checker.IsNil, check.Commentf("resource leaked from build for Ulimits"))
}