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authorValentin Rothberg <rothberg@redhat.com>2019-10-04 17:16:35 +0200
committerValentin Rothberg <rothberg@redhat.com>2019-10-07 16:27:09 +0200
commit6e0ca9e46c33d5519de3df46ff8baa85ff3f17e1 (patch)
tree56209ff8eddeeedeb4882057b423067839917745 /vendor/github.com
parent589261f275b485d78a6ac1bd7b95578257fc020f (diff)
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vendor c/psgo@v1.3.2
Now supports cgroupsv2. Fixes: #4192 Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
Diffstat (limited to 'vendor/github.com')
-rw-r--r--vendor/github.com/containers/psgo/.travis.yml6
-rw-r--r--vendor/github.com/containers/psgo/Makefile9
-rw-r--r--vendor/github.com/containers/psgo/go.mod2
-rw-r--r--vendor/github.com/containers/psgo/go.sum8
-rw-r--r--vendor/github.com/containers/psgo/internal/cgroups/cgroups.go44
-rw-r--r--vendor/github.com/containers/psgo/internal/proc/pids.go78
6 files changed, 129 insertions, 18 deletions
diff --git a/vendor/github.com/containers/psgo/.travis.yml b/vendor/github.com/containers/psgo/.travis.yml
index 1399d24d3..c07bb140b 100644
--- a/vendor/github.com/containers/psgo/.travis.yml
+++ b/vendor/github.com/containers/psgo/.travis.yml
@@ -14,6 +14,6 @@ before_install:
- sudo apt-get install -qq bats
script:
- - make validate || travis_terminate 1
- - make build || travis_terminate 1
- - make test || travis_terminate 1
+ - make validate
+ - make build
+ - make test
diff --git a/vendor/github.com/containers/psgo/Makefile b/vendor/github.com/containers/psgo/Makefile
index 6050b9d5b..361820784 100644
--- a/vendor/github.com/containers/psgo/Makefile
+++ b/vendor/github.com/containers/psgo/Makefile
@@ -1,4 +1,5 @@
export GO111MODULE=off
+export GOPROXY=https://proxy.golang.org
SHELL= /bin/bash
GO ?= go
@@ -9,11 +10,17 @@ PROJECT := github.com/containers/psgo
BATS_TESTS := *.bats
GO_SRC=$(shell find . -name \*.go)
+GO_BUILD=$(GO) build
+# Go module support: set `-mod=vendor` to use the vendored sources
+ifeq ($(shell go help mod >/dev/null 2>&1 && echo true), true)
+ GO_BUILD=GO111MODULE=on $(GO) build -mod=vendor
+endif
+
all: validate build
.PHONY: build
build: $(GO_SRC)
- $(GO) build -buildmode=pie -o $(BUILD_DIR)/$(NAME) $(PROJECT)/sample
+ $(GO_BUILD) -buildmode=pie -o $(BUILD_DIR)/$(NAME) $(PROJECT)/sample
.PHONY: clean
clean:
diff --git a/vendor/github.com/containers/psgo/go.mod b/vendor/github.com/containers/psgo/go.mod
index a194ec196..d9d54c5f7 100644
--- a/vendor/github.com/containers/psgo/go.mod
+++ b/vendor/github.com/containers/psgo/go.mod
@@ -6,6 +6,6 @@ require (
github.com/opencontainers/runc v0.0.0-20190425234816-dae70e8efea4
github.com/pkg/errors v0.0.0-20190227000051-27936f6d90f9
github.com/sirupsen/logrus v0.0.0-20190403091019-9b3cdde74fbe
- github.com/stretchr/testify v1.3.0
+ github.com/stretchr/testify v1.4.0
golang.org/x/sys v0.0.0-20190425145619-16072639606e
)
diff --git a/vendor/github.com/containers/psgo/go.sum b/vendor/github.com/containers/psgo/go.sum
index da6c750db..bbdd99730 100644
--- a/vendor/github.com/containers/psgo/go.sum
+++ b/vendor/github.com/containers/psgo/go.sum
@@ -16,8 +16,12 @@ github.com/stretchr/objx v0.1.1 h1:2vfRuCMp5sSVIDSqO8oNnWJq7mPa6KVP3iPIwFBuy8A=
github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/testify v1.2.2 h1:bSDNvY7ZPG5RlJ8otE/7V6gMiyenm9RtJ7IUVIAoJ1w=
github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
-github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q=
-github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
+github.com/stretchr/testify v1.4.0 h1:2E4SXV/wtOkTonXsotYi4li6zVWxYlZuYNCXe9XRJyk=
+github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190425145619-16072639606e h1:4ktJgTV34+N3qOZUc5fAaG3Pb11qzMm3PkAoTAgUZ2I=
golang.org/x/sys v0.0.0-20190425145619-16072639606e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
+gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
diff --git a/vendor/github.com/containers/psgo/internal/cgroups/cgroups.go b/vendor/github.com/containers/psgo/internal/cgroups/cgroups.go
new file mode 100644
index 000000000..eecaf87cb
--- /dev/null
+++ b/vendor/github.com/containers/psgo/internal/cgroups/cgroups.go
@@ -0,0 +1,44 @@
+// Copyright 2019 psgo authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package cgroups
+
+import (
+ "sync"
+ "syscall"
+)
+
+const (
+ CgroupRoot = "/sys/fs/cgroup"
+ cgroup2SuperMagic = 0x63677270
+)
+
+var (
+ isUnifiedOnce sync.Once
+ isUnified bool
+ isUnifiedErr error
+)
+
+// IsCgroup2UnifiedMode returns whether we are running in cgroup or cgroupv2 mode.
+func IsCgroup2UnifiedMode() (bool, error) {
+ isUnifiedOnce.Do(func() {
+ var st syscall.Statfs_t
+ if err := syscall.Statfs(CgroupRoot, &st); err != nil {
+ isUnified, isUnifiedErr = false, err
+ } else {
+ isUnified, isUnifiedErr = st.Type == cgroup2SuperMagic, nil
+ }
+ })
+ return isUnified, isUnifiedErr
+}
diff --git a/vendor/github.com/containers/psgo/internal/proc/pids.go b/vendor/github.com/containers/psgo/internal/proc/pids.go
index ff4887364..69e8befc1 100644
--- a/vendor/github.com/containers/psgo/internal/proc/pids.go
+++ b/vendor/github.com/containers/psgo/internal/proc/pids.go
@@ -1,4 +1,4 @@
-// Copyright 2018 psgo authors
+// Copyright 2018-2019 psgo authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
@@ -18,8 +18,11 @@ import (
"bufio"
"fmt"
"os"
+ "path/filepath"
"strconv"
"strings"
+
+ "github.com/containers/psgo/internal/cgroups"
)
// GetPIDs extracts and returns all PIDs from /proc.
@@ -49,45 +52,98 @@ func GetPIDs() ([]string, error) {
return pids, nil
}
-// pidCgroupPath returns the path to the pid's pids cgroup.
-func pidCgroupPath(pid string) (string, error) {
+// GetPIDsFromCgroup returns a strings slice of all pids listesd in pid's pids
+// cgroup. It automatically detects if we're running in unified mode or not.
+func GetPIDsFromCgroup(pid string) ([]string, error) {
+ unified, err := cgroups.IsCgroup2UnifiedMode()
+ if err != nil {
+ return nil, err
+ }
+ if unified {
+ return getPIDsFromCgroupV2(pid)
+ }
+ return getPIDsFromCgroupV1(pid)
+}
+
+// getPIDsFromCgroupV1 returns a strings slice of all pids listesd in pid's pids
+// cgroup.
+func getPIDsFromCgroupV1(pid string) ([]string, error) {
+ // First, find the corresponding path to the PID cgroup.
f, err := os.Open(fmt.Sprintf("/proc/%s/cgroup", pid))
if err != nil {
- return "", err
+ return nil, err
}
defer f.Close()
scanner := bufio.NewScanner(f)
+ cgroupPath := ""
for scanner.Scan() {
fields := strings.Split(scanner.Text(), ":")
if len(fields) != 3 {
continue
}
if fields[1] == "pids" {
- return fmt.Sprintf("/sys/fs/cgroup/pids/%s/cgroup.procs", fields[2]), nil
+ cgroupPath = fmt.Sprintf("/sys/fs/cgroup/pids/%s/cgroup.procs", fields[2])
}
}
- return "", fmt.Errorf("couldn't find pids group for PID %s", pid)
+
+ if cgroupPath == "" {
+ return nil, fmt.Errorf("couldn't find v1 pids group for PID %s", pid)
+ }
+
+ // Second, extract the PIDs inside the cgroup.
+ f, err = os.Open(cgroupPath)
+ if err != nil {
+ return nil, err
+ }
+ defer f.Close()
+
+ pids := []string{}
+ scanner = bufio.NewScanner(f)
+ for scanner.Scan() {
+ pids = append(pids, scanner.Text())
+ }
+
+ return pids, nil
}
-// GetPIDsFromCgroup returns a strings slice of all pids listesd in pid's pids
+// getPIDsFromCgroupV2 returns a strings slice of all pids listesd in pid's pids
// cgroup.
-func GetPIDsFromCgroup(pid string) ([]string, error) {
- cgroupPath, err := pidCgroupPath(pid)
+func getPIDsFromCgroupV2(pid string) ([]string, error) {
+ // First, find the corresponding path to the PID cgroup.
+ f, err := os.Open(fmt.Sprintf("/proc/%s/cgroup", pid))
if err != nil {
return nil, err
}
+ defer f.Close()
+
+ scanner := bufio.NewScanner(f)
+ cgroupSlice := ""
+ for scanner.Scan() {
+ fields := strings.Split(scanner.Text(), ":")
+ if len(fields) != 3 {
+ continue
+ }
+ cgroupSlice = fields[2]
+ break
+ }
+
+ if cgroupSlice == "" {
+ return nil, fmt.Errorf("couldn't find v2 pids group for PID %s", pid)
+ }
- f, err := os.Open(cgroupPath)
+ // Second, extract the PIDs inside the cgroup.
+ f, err = os.Open(filepath.Join(cgroups.CgroupRoot, cgroupSlice, "cgroup.procs"))
if err != nil {
return nil, err
}
defer f.Close()
pids := []string{}
- scanner := bufio.NewScanner(f)
+ scanner = bufio.NewScanner(f)
for scanner.Scan() {
pids = append(pids, scanner.Text())
}
+
return pids, nil
}