75 lines
2.1 KiB
Go
75 lines
2.1 KiB
Go
// +build !windows
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package main
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import (
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"encoding/json"
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"os/exec"
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"strings"
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"github.com/go-check/check"
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)
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func (s *DockerSuite) TestBuildResourceConstraintsAreUsed(c *check.C) {
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testRequires(c, CpuCfsQuota)
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name := "testbuildresourceconstraints"
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ctx, err := fakeContext(`
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FROM hello-world:frozen
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RUN ["/hello"]
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`, map[string]string{})
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if err != nil {
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c.Fatal(err)
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}
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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, ".")
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cmd.Dir = ctx.Dir
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out, _, err := runCommandWithOutput(cmd)
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if err != nil {
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c.Fatal(err, out)
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}
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out, _ = dockerCmd(c, "ps", "-lq")
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cID := strings.TrimSpace(out)
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type hostConfig struct {
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Memory int64
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MemorySwap int64
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CpusetCpus string
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CpusetMems string
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CpuShares int64
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CpuQuota int64
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}
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cfg, err := inspectFieldJSON(cID, "HostConfig")
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if err != nil {
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c.Fatal(err)
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}
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var c1 hostConfig
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if err := json.Unmarshal([]byte(cfg), &c1); err != nil {
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c.Fatal(err, cfg)
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}
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if c1.Memory != 67108864 || c1.MemorySwap != -1 || c1.CpusetCpus != "0" || c1.CpusetMems != "0" || c1.CpuShares != 100 || c1.CpuQuota != 8000 {
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c.Fatalf("resource constraints not set properly:\nMemory: %d, MemSwap: %d, CpusetCpus: %s, CpusetMems: %s, CpuShares: %d, CpuQuota: %d",
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c1.Memory, c1.MemorySwap, c1.CpusetCpus, c1.CpusetMems, c1.CpuShares, c1.CpuQuota)
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}
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// Make sure constraints aren't saved to image
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_, _ = dockerCmd(c, "run", "--name=test", name)
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cfg, err = inspectFieldJSON("test", "HostConfig")
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if err != nil {
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c.Fatal(err)
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}
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var c2 hostConfig
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if err := json.Unmarshal([]byte(cfg), &c2); err != nil {
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c.Fatal(err, cfg)
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}
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if c2.Memory == 67108864 || c2.MemorySwap == -1 || c2.CpusetCpus == "0" || c2.CpusetMems == "0" || c2.CpuShares == 100 || c2.CpuQuota == 8000 {
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c.Fatalf("resource constraints leaked from build:\nMemory: %d, MemSwap: %d, CpusetCpus: %s, CpusetMems: %s, CpuShares: %d, CpuQuota: %d",
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c2.Memory, c2.MemorySwap, c2.CpusetCpus, c2.CpusetMems, c2.CpuShares, c2.CpuQuota)
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}
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}
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