Merge pull request #3 from kairos-io/380-return-partition-mapping-data

Make `kcrypt encrypt` return useful lable/uuid mapping data
This commit is contained in:
Dimitris Karakasilis
2022-11-11 15:13:16 +02:00
committed by GitHub
8 changed files with 351 additions and 20 deletions

26
.github/workflows/unit-tests.yml vendored Normal file
View File

@@ -0,0 +1,26 @@
name: Unit tests
on:
push:
branches:
- master
pull_request:
jobs:
unit-tests:
runs-on: ubuntu-latest
steps:
- name: Checkout code
uses: actions/checkout@v3
with:
fetch-depth: 0
- name: Install Go
uses: actions/setup-go@v3
with:
go-version: '^1.18'
- name: Install Ginkgo
run: go install github.com/onsi/ginkgo/v2/ginkgo@v2.5.0
- name: Run tests
run: |
ginkgo run ./...

12
go.mod
View File

@@ -7,8 +7,12 @@ require (
github.com/hashicorp/go-multierror v1.1.1
github.com/jaypipes/ghw v0.9.0
github.com/mudler/go-pluggable v0.0.0-20220716112424-189d463e3ff3
github.com/onsi/ginkgo/v2 v2.5.0
github.com/onsi/gomega v1.24.0
github.com/otiai10/copy v1.7.0
github.com/pkg/errors v0.9.1
github.com/urfave/cli v1.22.9
gopkg.in/yaml.v3 v3.0.1
)
require (
@@ -17,16 +21,18 @@ require (
github.com/chuckpreslar/emission v0.0.0-20170206194824-a7ddd980baf9 // indirect
github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d // indirect
github.com/ghodss/yaml v1.0.0 // indirect
github.com/go-logr/logr v1.2.3 // indirect
github.com/go-ole/go-ole v1.2.6 // indirect
github.com/google/go-cmp v0.5.9 // indirect
github.com/hashicorp/errwrap v1.0.0 // indirect
github.com/jaypipes/pcidb v1.0.0 // indirect
github.com/mitchellh/go-homedir v1.1.0 // indirect
github.com/pkg/errors v0.9.1 // indirect
github.com/russross/blackfriday/v2 v2.0.1 // indirect
github.com/shurcooL/sanitized_anchor_name v1.0.0 // indirect
golang.org/x/crypto v0.0.0-20220722155217-630584e8d5aa // indirect
golang.org/x/sys v0.0.0-20220803195053-6e608f9ce704 // indirect
golang.org/x/text v0.3.7 // indirect
golang.org/x/net v0.1.0 // indirect
golang.org/x/sys v0.1.0 // indirect
golang.org/x/text v0.4.0 // indirect
gopkg.in/yaml.v2 v2.4.0 // indirect
howett.net/plist v1.0.0 // indirect
)

24
go.sum
View File

@@ -16,6 +16,8 @@ github.com/fsnotify/fsnotify v1.4.9 h1:hsms1Qyu0jgnwNXIxa+/V/PDsU6CfLf6CNO8H7IWo
github.com/fsnotify/fsnotify v1.4.9/go.mod h1:znqG4EE+3YCdAaPaxE2ZRY/06pZUdp0tY4IgpuI1SZQ=
github.com/ghodss/yaml v1.0.0 h1:wQHKEahhL6wmXdzwWG11gIVCkOv05bNOh+Rxn0yngAk=
github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
github.com/go-logr/logr v1.2.3 h1:2DntVwHkVopvECVRSlL5PSo9eG+cAkDCuckLubN+rq0=
github.com/go-logr/logr v1.2.3/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
github.com/go-ole/go-ole v1.2.5/go.mod h1:pprOEPIfldk/42T2oK7lQ4v4JSDwmV0As9GaiUsvbm0=
github.com/go-ole/go-ole v1.2.6 h1:/Fpf6oFPoeFik9ty7siob0G6Ke8QvQEuVcuChpwXzpY=
github.com/go-ole/go-ole v1.2.6/go.mod h1:pprOEPIfldk/42T2oK7lQ4v4JSDwmV0As9GaiUsvbm0=
@@ -26,9 +28,12 @@ github.com/golang/protobuf v1.4.0-rc.2/go.mod h1:LlEzMj4AhA7rCAGe4KMBDvJI+AwstrU
github.com/golang/protobuf v1.4.0-rc.4.0.20200313231945-b860323f09d0/go.mod h1:WU3c8KckQ9AFe+yFwt9sWVRKCVIyN9cPHBJSNnbL67w=
github.com/golang/protobuf v1.4.0/go.mod h1:jodUvKwWbYaEsadDk5Fwe5c77LiNKVO9IDvqG2KuDX0=
github.com/golang/protobuf v1.4.2/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
github.com/golang/protobuf v1.5.2 h1:ROPKBNFfQgOUMifHyP+KYbvpjbdoFNs+aK7DXlji0Tw=
github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
github.com/google/go-cmp v0.5.9/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
github.com/hashicorp/errwrap v1.0.0 h1:hLrqtEDnRye3+sgx6z4qVLNuviH3MR5aQ0ykNJa/UYA=
github.com/hashicorp/errwrap v1.0.0/go.mod h1:YH+1FKiLXxHSkmPseP+kNlulaMuP3n2brvKWEqk/Jc4=
github.com/hashicorp/go-multierror v1.1.1 h1:H5DkEtf6CXdFp0N0Em5UCwQpXMWke8IA0+lD48awMYo=
@@ -57,10 +62,13 @@ github.com/onsi/ginkgo v1.6.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+W
github.com/onsi/ginkgo v1.12.1/go.mod h1:zj2OWP4+oCPe1qIXoGWkgMRwljMUYCdkwsT2108oapk=
github.com/onsi/ginkgo v1.14.2 h1:8mVmC9kjFFmA8H4pKMUhcblgifdkOIXPvbhN1T36q1M=
github.com/onsi/ginkgo v1.14.2/go.mod h1:iSB4RoI2tjJc9BBv4NKIKWKya62Rps+oPG/Lv9klQyY=
github.com/onsi/ginkgo/v2 v2.5.0 h1:TRtrvv2vdQqzkwrQ1ke6vtXf7IK34RBUJafIy1wMwls=
github.com/onsi/ginkgo/v2 v2.5.0/go.mod h1:Luc4sArBICYCS8THh8v3i3i5CuSZO+RaQRaJoeNwomw=
github.com/onsi/gomega v1.7.1/go.mod h1:XdKZgCCFLUoM/7CFJVPcG8C1xQ1AJ0vpAezJrB7JYyY=
github.com/onsi/gomega v1.10.1/go.mod h1:iN09h71vgCQne3DLsj+A5owkum+a2tYe+TOCB1ybHNo=
github.com/onsi/gomega v1.10.3 h1:gph6h/qe9GSUw1NhH1gp+qb+h8rXD8Cy60Z32Qw3ELA=
github.com/onsi/gomega v1.10.3/go.mod h1:V9xEwhxec5O8UDM77eCW8vLymOMltsqPVYWrpDsH8xc=
github.com/onsi/gomega v1.24.0 h1:+0glovB9Jd6z3VR+ScSwQqXVTIfJcGA9UBM8yzQxhqg=
github.com/onsi/gomega v1.24.0/go.mod h1:Z/NWtiqwBrwUt4/2loMmHL63EDLnYHmVbuBpDr2vQAg=
github.com/otiai10/copy v1.7.0 h1:hVoPiN+t+7d2nzzwMiDHPSOogsWAStewq3TwU05+clE=
github.com/otiai10/copy v1.7.0/go.mod h1:rmRl6QPdJj6EiUqXQ/4Nn2lLXoNQjFCQbbNrxgc/t3U=
github.com/otiai10/curr v0.0.0-20150429015615-9b4961190c95/go.mod h1:9qAhocn7zKJG+0mI8eUu6xqkFDYS2kb2saOteoSB3cE=
@@ -90,7 +98,8 @@ golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73r
golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/net v0.0.0-20200520004742-59133d7f0dd7/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
golang.org/x/net v0.0.0-20201006153459-a7d1128ccaa0/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2 h1:CIJ76btIcR3eFI5EgSo6k1qKw9KJexJuRLI9G7Hp5wE=
golang.org/x/net v0.1.0 h1:hZ/3BUoy5aId7sCpA/Tc5lt8DkFgdVS2onTpJsZ/fl0=
golang.org/x/net v0.1.0/go.mod h1:Cx3nUiGt4eDBEyega/BKRp+/AlGL8hYe7U9odMt2Cco=
golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
@@ -103,15 +112,14 @@ golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7w
golang.org/x/sys v0.0.0-20200519105757-fe76b779f299/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20220319134239-a9b59b0215f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20220803195053-6e608f9ce704 h1:Y7NOhdqIOU8kYI7BxsgL38d0ot0raxvcW+EMQU2QrT4=
golang.org/x/sys v0.0.0-20220803195053-6e608f9ce704/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.1.0 h1:kunALQeHf1/185U1i0GOB/fy1IPRDDpuoOOqRReG57U=
golang.org/x/sys v0.1.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
golang.org/x/text v0.3.7 h1:olpwvP2KacW1ZWvsR7uQhoyTYvKAupfQrRGBFM352Gk=
golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
golang.org/x/text v0.4.0 h1:BrVqGRd7+k1DiOgtnFvAkoQEWQvBc25ouMJM6429SFg=
golang.org/x/text v0.4.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
@@ -119,6 +127,7 @@ google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQ
google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miEFZTKqfCUM6K7xSMQL9OKL/b6hQv+e19PK+JZNE=
google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
google.golang.org/protobuf v1.28.0 h1:w43yiav+6bVFTBQFZX0r7ipe9JQ1QsbMgHwbBziscLw=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
@@ -132,5 +141,6 @@ gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
howett.net/plist v1.0.0 h1:7CrbWYbPPO/PyNy38b2EB/+gYbjCe2DXBxgtOOZbSQM=
howett.net/plist v1.0.0/go.mod h1:lqaXoTrLY4hg8tnEzNru53gicrbv7rrk+2xJA/7hw9g=

38
main.go
View File

@@ -17,6 +17,8 @@ import (
"github.com/mudler/go-pluggable"
cp "github.com/otiai10/copy"
"github.com/urfave/cli"
pi "github.com/kairos-io/kcrypt/pkg/partition_info"
)
func waitdevice(device string, attempts int) error {
@@ -109,45 +111,50 @@ func createDiskImage() (*os.File, error) {
// this function should delete COS_PERSISTENT. delete the partition and create a luks+type in place.
// Take a part label, and recreates it with LUKS. IT OVERWRITES DATA!
func luksify(label string) error {
// On success, it returns a machine parseable string with the partition information
// (label:name:uuid) so that it can be stored by the caller for later use.
// This is because the label of the encrypted partition is not accessible unless
// the partition is decrypted first and the uuid changed after encryption so
// any stored information needs to be updated (by the caller).
func luksify(label string) (string, error) {
// blkid
persistent, b, err := findPartition(label)
if err != nil {
return err
return "", err
}
pass, err := getPassword(b)
if err != nil {
return err
return "", err
}
persistent = fmt.Sprintf("/dev/%s", persistent)
devMapper := fmt.Sprintf("/dev/mapper/%s", b.Name)
if err := createLuks(persistent, pass, "luks1"); err != nil {
return err
return "", err
}
if err := luksUnlock(persistent, b.Name, pass); err != nil {
return err
return "", err
}
if err := waitdevice(devMapper, 10); err != nil {
return err
return "", err
}
out, err := sh(fmt.Sprintf("mkfs.ext4 -L %s %s", label, devMapper))
if err != nil {
return fmt.Errorf("err: %w, out: %s", err, out)
return "", fmt.Errorf("err: %w, out: %s", err, out)
}
out2, err := sh(fmt.Sprintf("cryptsetup close %s", b.Name))
if err != nil {
return fmt.Errorf("err: %w, out: %s", err, out2)
return "", fmt.Errorf("err: %w, out: %s", err, out2)
}
return nil
return pi.PartitionToString(b), nil
}
func findPartition(label string) (string, *block.Partition, error) {
@@ -272,11 +279,17 @@ func injectInitrd(initrd string, file, dst string) error {
func unlockAll() error {
bus.Manager.Initialize()
partitionInfo, err := pi.NewPartitionInfoFromFile(pi.DefaultPartitionInfoFile)
if err != nil {
return err
}
block, err := ghw.Block()
if err == nil {
for _, disk := range block.Disks {
for _, p := range disk.Partitions {
if p.Type == "crypto_LUKS" {
p.Label = partitionInfo.LookupLabelForUUID(p.UUID)
fmt.Printf("Unmounted Luks found at '%s' LABEL '%s' \n", p.Name, p.Label)
err = multierror.Append(err, unlockDisk(p))
if err != nil {
@@ -318,7 +331,12 @@ func main() {
if c.NArg() != 1 {
return fmt.Errorf("requires 1 arg, the partition label")
}
return luksify(c.Args().First())
out, err := luksify(c.Args().First())
if err != nil {
return err
}
fmt.Println(out)
return nil
},
},
{

View File

@@ -0,0 +1,100 @@
package partition_info
import (
"fmt"
"io/ioutil"
"strings"
"github.com/jaypipes/ghw/pkg/block"
"github.com/pkg/errors"
"gopkg.in/yaml.v3"
)
const DefaultPartitionInfoFile = "/oem/partition_info.yaml"
// PartitionInfo maps a partition label to a partition UUID.
// It's used in order to be able to ask the kcrypt-challenger for the passphrase
// using the partition label, even when the label is not accessible (e.g. before
// decrypting the partition). The UUID can be used to lookup the partition label
// and make the request.
type PartitionInfo struct {
file string
mapping map[string]string
}
func NewPartitionInfoFromFile(file string) (*PartitionInfo, error) {
mapping, err := ParsePartitionInfoFile(file)
if err != nil {
return nil, err
}
return &PartitionInfo{
file: file,
mapping: mapping,
}, nil
}
func (pi PartitionInfo) LookupUUIDForLabel(l string) string {
return pi.mapping[l]
}
func (pi PartitionInfo) LookupLabelForUUID(uuid string) string {
for k, v := range pi.mapping {
if v == uuid {
return k
}
}
return ""
}
// UpdatePartitionLabelMapping takes partition information as a string argument
// the the form: `label:name:uuid` (that's what the `kcrypt encrypt` command returns
// on success. This function stores it in the PartitionInfoFile yaml file for
// later use.
func (pi PartitionInfo) UpdateMapping(partitionData string) error {
label, uuid := PartitionDataFromString(partitionData)
pi.mapping[label] = uuid
return pi.save()
}
func (pi PartitionInfo) save() error {
data, err := yaml.Marshal(&pi.mapping)
if err != nil {
return errors.Wrap(err, "marshalling the new partition info to yaml")
}
err = ioutil.WriteFile(pi.file, data, 0)
if err != nil {
return errors.Wrap(err, "writing back the partition info file")
}
return nil
}
func PartitionToString(p *block.Partition) string {
return fmt.Sprintf("%s:%s:%s", p.Label, p.Name, p.UUID)
}
// Takes a partition info string (as returned by PartitionToString) and return
// the partition label and the UUID
func PartitionDataFromString(partitionStr string) (string, string) {
parts := strings.Split(partitionStr, ":")
return parts[0], parts[2]
}
func ParsePartitionInfoFile(file string) (map[string]string, error) {
var result map[string]string
yamlFile, err := ioutil.ReadFile(file)
if err != nil {
return result, errors.Wrap(err, "reading the partition info file")
}
err = yaml.Unmarshal(yamlFile, &result)
if err != nil {
return result, errors.Wrap(err, "unmarshalling partition info file")
}
return result, nil
}

View File

@@ -0,0 +1,156 @@
package partition_info_test
import (
"io/ioutil"
"os"
"github.com/jaypipes/ghw/pkg/block"
. "github.com/onsi/ginkgo/v2"
. "github.com/onsi/gomega"
pi "github.com/kairos-io/kcrypt/pkg/partition_info"
)
var _ = Describe("Partition Info file parsing", func() {
Describe("NewPartitionInfoFromFile", func() {
var file string
BeforeEach(func() {
file = "../../tests/assets/partition_info.yaml"
})
It("returns a PartitionInfo", func() {
result, err := pi.NewPartitionInfoFromFile(file)
Expect(err).ToNot(HaveOccurred())
Expect(result).ToNot(BeNil())
})
})
Describe("ParsePartitionInfoFile", func() {
var file string
BeforeEach(func() {
file = "../../tests/assets/partition_info.yaml"
})
It("parses the file correctly", func() {
info, err := pi.ParsePartitionInfoFile(file)
Expect(err).ToNot(HaveOccurred())
Expect(len(info)).To(Equal(2))
Expect(info["COS_PERSISTENT"]).To(Equal("some_uuid_1"))
Expect(info["COS_OTHER"]).To(Equal("some_uuid_2"))
})
})
Describe("PartitionToString", func() {
var partition *block.Partition
BeforeEach(func() {
partition = &block.Partition{
Disk: nil,
Name: "sda1",
Label: "COS_PERSISTENT",
MountPoint: "/mnt/sda1",
UUID: "some_uuid_here",
}
})
It("returns a string representation of the partition data", func() {
Expect(pi.PartitionToString(partition)).To(Equal("COS_PERSISTENT:sda1:some_uuid_here"))
})
})
Describe("PartitionDataFromString", func() {
var partitionData string
BeforeEach(func() {
partitionData = "THE_LABEL:the_name:the_uuid"
})
It("returns the label and the uuid", func() {
label, uuid := pi.PartitionDataFromString(partitionData)
Expect(label).To(Equal("THE_LABEL"))
Expect(uuid).To(Equal("the_uuid"))
})
})
Describe("UpdateMapping", func() {
var file *os.File
var err error
var partitionInfo *pi.PartitionInfo
BeforeEach(func() {
file, err = ioutil.TempFile("", "partition-info.*.yaml")
Expect(err).ToNot(HaveOccurred())
_, err = file.Write([]byte("TO_KEEP: old_uuid_1"))
Expect(err).ToNot(HaveOccurred())
partitionInfo, err = pi.NewPartitionInfoFromFile(file.Name())
Expect(err).ToNot(HaveOccurred())
})
AfterEach(func() {
os.Remove(file.Name())
})
It("Updates the file correctly from a `kcrypt encrypt` return value", func() {
partitionData := "TO_BE_ADDED:some_name:new_uuid"
err = partitionInfo.UpdateMapping(partitionData)
Expect(err).ToNot(HaveOccurred())
dat, err := os.ReadFile(file.Name())
Expect(err).ToNot(HaveOccurred())
expectedContent := `TO_BE_ADDED: new_uuid
TO_KEEP: old_uuid_1
`
Expect(string(dat)).To(Equal(expectedContent))
})
})
Describe("LookupUUIDForLabel", func() {
var file string
var partitionInfo *pi.PartitionInfo
var err error
BeforeEach(func() {
file = "../../tests/assets/partition_info.yaml"
partitionInfo, err = pi.NewPartitionInfoFromFile(file)
Expect(err).ToNot(HaveOccurred())
})
It("returns the correct UUID", func() {
uuid := partitionInfo.LookupUUIDForLabel("COS_PERSISTENT")
Expect(uuid).To(Equal("some_uuid_1"))
})
It("returns an empty UUID when the label is not found", func() {
uuid := partitionInfo.LookupUUIDForLabel("DOESNT_EXIST")
Expect(uuid).To(Equal(""))
})
})
Describe("LookupLabelForUUID", func() {
var file string
var partitionInfo *pi.PartitionInfo
var err error
BeforeEach(func() {
file = "../../tests/assets/partition_info.yaml"
partitionInfo, err = pi.NewPartitionInfoFromFile(file)
Expect(err).ToNot(HaveOccurred())
})
It("returns the correct label", func() {
uuid := partitionInfo.LookupLabelForUUID("some_uuid_1")
Expect(uuid).To(Equal("COS_PERSISTENT"))
})
It("returns an empty label when UUID doesn't exist", func() {
uuid := partitionInfo.LookupLabelForUUID("doesnt_exist")
Expect(uuid).To(Equal(""))
})
})
})

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@@ -0,0 +1,13 @@
package partition_info
import (
"testing"
. "github.com/onsi/ginkgo/v2"
. "github.com/onsi/gomega"
)
func TestPartitionINfo(t *testing.T) {
RegisterFailHandler(Fail)
RunSpecs(t, "PartitionInfo file parser test suite")
}

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@@ -0,0 +1,2 @@
COS_PERSISTENT: some_uuid_1
COS_OTHER: some_uuid_2