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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"
"os/exec"
"strings"
"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{})
if err != nil {
c.Fatal(err)
}
cmd := exec.Command(dockerBinary, "build", "--no-cache", "--rm=false", "--memory=64m", "--memory-swap=-1", "--cpuset-cpus=0", "--cpuset-mems=0", "--cpu-shares=100", "--cpu-quota=8000", "-t", name, ".")
cmd.Dir = ctx.Dir
out, _, err := runCommandWithOutput(cmd)
if err != nil {
c.Fatal(err, out)
}
out, _ = dockerCmd(c, "ps", "-lq")
cID := strings.TrimSpace(out)
type hostConfig struct {
Memory int64
MemorySwap int64
CpusetCpus string
CpusetMems string
CpuShares int64
CpuQuota int64
}
cfg, err := inspectFieldJSON(cID, "HostConfig")
if err != nil {
c.Fatal(err)
}
var c1 hostConfig
if err := json.Unmarshal([]byte(cfg), &c1); err != nil {
c.Fatal(err, cfg)
}
if c1.Memory != 67108864 || c1.MemorySwap != -1 || c1.CpusetCpus != "0" || c1.CpusetMems != "0" || c1.CpuShares != 100 || c1.CpuQuota != 8000 {
c.Fatalf("resource constraints not set properly:\nMemory: %d, MemSwap: %d, CpusetCpus: %s, CpusetMems: %s, CpuShares: %d, CpuQuota: %d",
c1.Memory, c1.MemorySwap, c1.CpusetCpus, c1.CpusetMems, c1.CpuShares, c1.CpuQuota)
}
// Make sure constraints aren't saved to image
_, _ = dockerCmd(c, "run", "--name=test", name)
cfg, err = inspectFieldJSON("test", "HostConfig")
if err != nil {
c.Fatal(err)
}
var c2 hostConfig
if err := json.Unmarshal([]byte(cfg), &c2); err != nil {
c.Fatal(err, cfg)
}
if c2.Memory == 67108864 || c2.MemorySwap == -1 || c2.CpusetCpus == "0" || c2.CpusetMems == "0" || c2.CpuShares == 100 || c2.CpuQuota == 8000 {
c.Fatalf("resource constraints leaked from build:\nMemory: %d, MemSwap: %d, CpusetCpus: %s, CpusetMems: %s, CpuShares: %d, CpuQuota: %d",
c2.Memory, c2.MemorySwap, c2.CpusetCpus, c2.CpusetMems, c2.CpuShares, c2.CpuQuota)
}
}