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test(ci): adding wrapper for vg and pv operations
Signed-off-by: Abhilash Shetty <[email protected]>
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,201 @@ | ||
| /* | ||
| Copyright 2021 The OpenEBS 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 tests | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "strconv" | ||
| "strings" | ||
|
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| "github.com/onsi/gomega" | ||
| ) | ||
|
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| // This creates loopdevice using the size passed as arg, | ||
| // Uses the new loop device to create PV. returns loopdevice name to the caller. | ||
| func createPV(size int) string { | ||
| fmt.Printf("Creating device\n") | ||
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| back_file_args := []string{ | ||
| "mktemp", "-t", | ||
| "openebs_lvm_localpv_disk_XXXXX", | ||
| "--dry-run", | ||
| } | ||
| file, _, _ := execAtLocal("sudo", nil, back_file_args...) | ||
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| file_str := strings.TrimSpace(string(file[:])) | ||
| size_str := strconv.Itoa(size) + "G" | ||
| device_args := []string{ | ||
| "truncate", "-s", | ||
| size_str, file_str, | ||
| } | ||
| _, _, err := execAtLocal("sudo", nil, device_args...) | ||
| gomega.Expect(err).ShouldNot(gomega.HaveOccurred(), "create device failed") | ||
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| args_loop := []string{ | ||
| "losetup", "-f", | ||
| file_str, "--show", | ||
| } | ||
| stdout_loop, _, err := execAtLocal("sudo", nil, args_loop...) | ||
| gomega.Expect(err).To(gomega.BeNil(), "loop device create failed") | ||
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| stdout_loop_str := strings.TrimSpace(string(stdout_loop[:])) | ||
| args_pv := []string{ | ||
| "pvcreate", | ||
| stdout_loop_str, | ||
| } | ||
| _, _, err_pv := execAtLocal("sudo", nil, args_pv...) | ||
| gomega.Expect(err_pv).To(gomega.BeNil(), "pv create failed") | ||
| return stdout_loop_str | ||
| } | ||
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| // Does pvremove on specified device. Deletes loop device and the file backing loop device. | ||
| func removePV(device string) { | ||
| fmt.Printf("remove pv\n") | ||
| args_pv := []string{ | ||
| "pvremove", | ||
| device, | ||
| "-y", | ||
| } | ||
| _, _, err_pv := execAtLocal("sudo", nil, args_pv...) | ||
| gomega.Expect(err_pv).To(gomega.BeNil(), "pv remove failed") | ||
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| args_lo := []string{ | ||
| "losetup", | ||
| device, | ||
| "-O", | ||
| "BACK-FILE", | ||
| "--noheadings", | ||
| } | ||
| dev, _, _ := execAtLocal("sudo", nil, args_lo...) | ||
| dev_str := strings.TrimSpace(string(dev)) | ||
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| args_loop := []string{ | ||
| "losetup", "-d", | ||
| device, | ||
| } | ||
| _, _, err_loop := execAtLocal("sudo", nil, args_loop...) | ||
| gomega.Expect(err_loop).To(gomega.BeNil(), "loop device remove failed") | ||
|
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| args_file := []string{ | ||
| "rm", | ||
| "-f", | ||
| dev_str, | ||
| } | ||
| _, _, err_file := execAtLocal("sudo", nil, args_file...) | ||
| gomega.Expect(err_file).To(gomega.BeNil(), "file remove failed") | ||
| } | ||
|
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| // Creates vg on the specified device, Device passed should be a pv. | ||
| func createVg(name string, device string) { | ||
| fmt.Printf("Creating vg\n") | ||
| args_vg := []string{ | ||
| "vgcreate", name, | ||
| device, | ||
| } | ||
| _, _, err_vg := execAtLocal("sudo", nil, args_vg...) | ||
| gomega.Expect(err_vg).To(gomega.BeNil(), "vg create failed") | ||
| } | ||
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| // Takes vg name and pv device, extends vg using the supplied pv. | ||
| func extendVg(name string, device string) { | ||
| fmt.Printf("extending vg\n") | ||
| args_vg := []string{ | ||
| "vgextend", name, | ||
| device, | ||
| } | ||
| _, _, err_vg := execAtLocal("sudo", nil, args_vg...) | ||
| gomega.Expect(err_vg).To(gomega.BeNil(), "vg extend failed") | ||
| } | ||
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| // Does vhremove on specified vg with force flag, | ||
| // lv will be forcedeleted if vg is not empty. | ||
| func removeVg(name string) { | ||
| fmt.Printf("Removing vg\n") | ||
| args_vg := []string{ | ||
| "vgremove", | ||
| name, | ||
| "-f", | ||
| } | ||
| _, _, err_vg := execAtLocal("sudo", nil, args_vg...) | ||
| gomega.Expect(err_vg).To(gomega.BeNil(), "vg remove failed") | ||
| } | ||
|
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| // enable the monitoring on thinpool created for test, on local node which | ||
| // is part of single node cluster. | ||
| func enableThinpoolMonitoring() { | ||
| lv := VOLGROUP + "/" + pvcObj.Spec.VolumeName | ||
|
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| args := []string{ | ||
| "lvdisplay", "--columns", | ||
| "--options", "pool_lv", | ||
| "--noheadings", | ||
| lv, | ||
| } | ||
| stdout, _, err := execAtLocal("sudo", nil, args...) | ||
| gomega.Expect(err).ShouldNot(gomega.HaveOccurred(), "display LV") | ||
| gomega.Expect(strings.TrimSpace(string(stdout))).To(gomega.Not(gomega.Equal("")), "get thinpool LV") | ||
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| thinpool := VOLGROUP + "/" + strings.TrimSpace(string(stdout)) | ||
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| args = []string{ | ||
| "lvchange", | ||
| "--monitor", "y", | ||
| thinpool, | ||
| } | ||
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| _, _, err = execAtLocal("sudo", nil, args...) | ||
| gomega.Expect(err).To(gomega.BeNil(), "run lvchange command") | ||
| } | ||
|
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| // verify that the thinpool has extended in capacity to an expected size. | ||
| func VerifyThinpoolExtend() { | ||
| expect_size, _ := strconv.ParseInt(expanded_capacity, 10, 64) | ||
| lv := VOLGROUP + "/" + pvcObj.Spec.VolumeName | ||
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| args := []string{ | ||
| "lvdisplay", "--columns", | ||
| "--options", "pool_lv", | ||
| "--noheadings", | ||
| lv, | ||
| } | ||
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| //stdout will contain the pool name | ||
| stdout, _, err := execAtLocal("sudo", nil, args...) | ||
| gomega.Expect(err).ShouldNot(gomega.HaveOccurred(), "display LV") | ||
| gomega.Expect(strings.TrimSpace(string(stdout))).To(gomega.Not(gomega.Equal("")), "get thinpool LV") | ||
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| thinpool := VOLGROUP + "/" + strings.TrimSpace(string(stdout)) | ||
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| args = []string{ | ||
| "lvdisplay", "--columns", | ||
| "--options", "lv_size", | ||
| "--units", "b", | ||
| "--noheadings", | ||
| thinpool, | ||
| } | ||
|
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| // stdout will contain the size | ||
| stdout, _, err = execAtLocal("sudo", nil, args...) | ||
| gomega.Expect(err).To(gomega.BeNil(), "display thinpool LV") | ||
|
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| // Remove unit suffix from the size. | ||
| size_str := strings.TrimSuffix(strings.TrimSpace(string(stdout)), "B") | ||
| // This expectation is a factor of the lvm.conf settings we do from ci-test.sh | ||
| // and the original volume size. | ||
| size_int64, _ := strconv.ParseInt(size_str, 10, 64) | ||
| gomega.Expect(size_int64).To(gomega.Equal(expect_size)) | ||
| } |
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