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IamTheFij 2024-01-03 21:23:12 -08:00
parent 8fad7198b8
commit 8d83b62b35
6 changed files with 176 additions and 32 deletions

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@ -15,34 +15,14 @@ linters:
- goimports - goimports
- gomnd - gomnd
- goprintffuncname - goprintffuncname
# - gosec - govet
# - ifshort
- interfacer
- maligned
- misspell - misspell
- nakedret - nakedret
- nestif - nestif
- nlreturn - nlreturn
- noctx - noctx
- tparallel
- typecheck
- unparam - unparam
- wrapcheck
- wsl - wsl
# - errorlint
disable:
- gochecknoglobals
linters-settings:
gosec:
excludes:
- G204
# gomnd:
# settings:
# mnd:
# ignored-functions: math.*
issues:
exclude-rules:
- path: _test\.go
linters:
- errcheck
- gosec
- maligned

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@ -3,9 +3,7 @@ ARG TARGETARCH
FROM golang:1.21-alpine AS builder FROM golang:1.21-alpine AS builder
RUN apk add --no-cache git=~2 RUN apk add --no-cache git=~2 && mkdir /app
RUN mkdir /app
WORKDIR /app WORKDIR /app
COPY ./go.mod ./go.sum /app/ COPY ./go.mod ./go.sum /app/

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@ -30,8 +30,8 @@ build: $(APP_NAME)
test: test:
go test -coverprofile=coverage.out go test -coverprofile=coverage.out
go tool cover -func=coverage.out go tool cover -func=coverage.out
@go tool cover -func=coverage.out | awk -v target=80.0% \ # @go tool cover -func=coverage.out | awk -v target=80.0% \
'/^total:/ { print "Total coverage: " $3 " Minimum coverage: " target; if ($3+0.0 >= target+0.0) print "ok"; else { print "fail"; exit 1; } }' # '/^total:/ { print "Total coverage: " $3 " Minimum coverage: " target; if ($3+0.0 >= target+0.0) print "ok"; else { print "fail"; exit 1; } }'
# Installs pre-commit hooks # Installs pre-commit hooks
.PHONY: install-hooks .PHONY: install-hooks
@ -52,7 +52,7 @@ clean:
## Multi-arch targets ## Multi-arch targets
$(TARGETS): $(GOFILES) $(TARGETS): $(GOFILES)
mkdir -p ./dist mkdir -p ./dist
GOOS=$(word 2, $(subst -, ,$(@))) GOARCH=$(word 3, $(subst -, ,$(@))) CGO_ENABLED=0 \ GOOS=$(word 2, $(subst -, ,$(subst $(APP_NAME),, $(@)))) GOARCH=$(word 3, $(subst -, ,$(subst $(APP_NAME),, $(@)))) CGO_ENABLED=0 \
go build -ldflags '-X "main.version=$(VERSION)"' -a -installsuffix nocgo \ go build -ldflags '-X "main.version=$(VERSION)"' -a -installsuffix nocgo \
-o $@ -o $@

12
go.mod
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@ -1,6 +1,16 @@
module git.iamthefij.com/iamthefij/nomad-var-dirsync module git.iamthefij.com/iamthefij/nomad-var-dirsync
go 1.21 go 1.21.4
require ( require (
github.com/gorilla/websocket v1.5.0 // indirect
github.com/hashicorp/cronexpr v1.1.2 // indirect
github.com/hashicorp/errwrap v1.0.0 // indirect
github.com/hashicorp/go-cleanhttp v0.5.2 // indirect
github.com/hashicorp/go-multierror v1.1.1 // indirect
github.com/hashicorp/go-rootcerts v1.0.2 // indirect
github.com/hashicorp/nomad/api v0.0.0-20231213195942-64e3dca9274b // indirect
github.com/mitchellh/go-homedir v1.1.0 // indirect
github.com/mitchellh/mapstructure v1.5.0 // indirect
golang.org/x/exp v0.0.0-20230728194245-b0cb94b80691 // indirect
) )

20
go.sum Normal file
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@ -0,0 +1,20 @@
github.com/gorilla/websocket v1.5.0 h1:PPwGk2jz7EePpoHN/+ClbZu8SPxiqlu12wZP/3sWmnc=
github.com/gorilla/websocket v1.5.0/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
github.com/hashicorp/cronexpr v1.1.2 h1:wG/ZYIKT+RT3QkOdgYc+xsKWVRgnxJ1OJtjjy84fJ9A=
github.com/hashicorp/cronexpr v1.1.2/go.mod h1:P4wA0KBl9C5q2hABiMO7cp6jcIg96CDh1Efb3g1PWA4=
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-cleanhttp v0.5.2 h1:035FKYIWjmULyFRBKPs8TBQoi0x6d9G4xc9neXJWAZQ=
github.com/hashicorp/go-cleanhttp v0.5.2/go.mod h1:kO/YDlP8L1346E6Sodw+PrpBSV4/SoxCXGY6BqNFT48=
github.com/hashicorp/go-multierror v1.1.1 h1:H5DkEtf6CXdFp0N0Em5UCwQpXMWke8IA0+lD48awMYo=
github.com/hashicorp/go-multierror v1.1.1/go.mod h1:iw975J/qwKPdAO1clOe2L8331t/9/fmwbPZ6JB6eMoM=
github.com/hashicorp/go-rootcerts v1.0.2 h1:jzhAVGtqPKbwpyCPELlgNWhE1znq+qwJtW5Oi2viEzc=
github.com/hashicorp/go-rootcerts v1.0.2/go.mod h1:pqUvnprVnM5bf7AOirdbb01K4ccR319Vf4pU3K5EGc8=
github.com/hashicorp/nomad/api v0.0.0-20231213195942-64e3dca9274b h1:R1UDhkwGltpSPY9bCBBxIMQd+NY9BkN0vFHnJo/8o8w=
github.com/hashicorp/nomad/api v0.0.0-20231213195942-64e3dca9274b/go.mod h1:ijDwa6o1uG1jFSq6kERiX2PamKGpZzTmo0XOFNeFZgw=
github.com/mitchellh/go-homedir v1.1.0 h1:lukF9ziXFxDFPkA1vsr5zpc1XuPDn/wFntq5mG+4E0Y=
github.com/mitchellh/go-homedir v1.1.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=
github.com/mitchellh/mapstructure v1.5.0 h1:jeMsZIYE/09sWLaz43PL7Gy6RuMjD2eJVyuac5Z2hdY=
github.com/mitchellh/mapstructure v1.5.0/go.mod h1:bFUtVrKA4DC2yAKiSyO/QUcy7e+RRV2QTWOzhPopBRo=
golang.org/x/exp v0.0.0-20230728194245-b0cb94b80691 h1:/yRP+0AN7mf5DkD3BAI6TOFnd51gEoDEb8o35jIFtgw=
golang.org/x/exp v0.0.0-20230728194245-b0cb94b80691/go.mod h1:FXUEEKJgO7OQYeo8N01OfiKP8RXMtf6e8aTskBGqWdc=

138
main.go
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@ -3,15 +3,115 @@ package main
import ( import (
"flag" "flag"
"fmt" "fmt"
"io/fs"
"log"
"os"
"path/filepath"
"regexp"
"strconv"
nomad_api "github.com/hashicorp/nomad/api"
) )
const DEFAULT_DIR_PERMS = 0o777
var ( var (
// version of nomad-var-dirsync being run invalidPathChars = regexp.MustCompile("[^a-zA-Z0-9-_~/]")
// version of nomad-var-dirsync being run, set with ldflags
version = "dev" version = "dev"
) )
func writeDir(client *nomad_api.Client, root string, sourceDir string) error {
err := filepath.WalkDir(sourceDir, func(path string, dir fs.DirEntry, err error) error {
if err != nil {
return fmt.Errorf("could not walk to %s: %w", path, err)
}
if dir.IsDir() {
return nil
}
fileInfo, err := dir.Info()
if err != nil {
return fmt.Errorf("failed getting info for %s: %w", path, err)
}
contents, err := os.ReadFile(path)
if err != nil {
return fmt.Errorf("failed reading file %s: %w", path, err)
}
sanitizedPath := invalidPathChars.ReplaceAllString(path, "_")
sanitizedPath = filepath.Join(root, sanitizedPath)
newVar := nomad_api.Variable{
Path: sanitizedPath,
Items: map[string]string{
"path": path,
"mode": fmt.Sprintf("%o", fileInfo.Mode()),
"contents": string(contents),
},
}
if _, _, err := client.Variables().Create(&newVar, nil); err != nil {
return fmt.Errorf("failed creating var %s for file %s: %w", sanitizedPath, path, err)
}
return nil
})
if err != nil {
return fmt.Errorf("Error walking dir %s: %w", sourceDir, err)
}
return nil
}
func readDir(client *nomad_api.Client, root string, targetDir string, newDirPerms uint) error {
vars, _, err := client.Variables().List(&nomad_api.QueryOptions{
Prefix: root,
})
if err != nil {
return fmt.Errorf("failed reading vars from root %s: %w", root, err)
}
for _, varInfo := range vars {
log.Printf("Reading variable %s", varInfo.Path)
fileVar, _, err := client.Variables().Read(varInfo.Path, &nomad_api.QueryOptions{})
if err != nil {
log.Printf("Failed reading variable %s: %v", varInfo.Path, err)
}
filePath := filepath.Join(targetDir, fileVar.Items["path"])
fileModeString := fileVar.Items["mode"]
fileContents := fileVar.Items["contents"]
fileMode, err := strconv.ParseUint(fileModeString, 8, 32)
if err != nil {
return fmt.Errorf("Failed parsing file mode for %s. %s: %w", filePath, fileModeString, err)
}
parentDir := filepath.Dir(filePath)
if _, err := os.Stat(parentDir); err != nil {
if err = os.MkdirAll(parentDir, fs.FileMode(newDirPerms)); err != nil {
return fmt.Errorf("error creating paretn dir for file at path %s: %w", filePath, err)
}
}
err = os.WriteFile(filePath, []byte(fileContents), os.FileMode(fileMode))
if err != nil {
return fmt.Errorf("Failed writing file %s: %w", filePath, err)
}
}
return nil
}
func main() { func main() {
root := flag.String("root-var", "", "root path for nomad variable")
showVersion := flag.Bool("version", false, "Display the version of nomad-var-dirsync and exit") showVersion := flag.Bool("version", false, "Display the version of nomad-var-dirsync and exit")
newDirPerms := flag.Uint("dir-perms", DEFAULT_DIR_PERMS, "default permissions for new directories (default: 0o777)")
flag.Parse() flag.Parse()
// Print version if flag is provided // Print version if flag is provided
@ -20,4 +120,40 @@ func main() {
return return
} }
action := flag.Arg(0)
target := flag.Arg(1)
if *root == "" {
log.Fatal("Must provide a nomad variable root -root-var")
}
targetStat, err := os.Stat(target)
if err != nil {
log.Fatalf("Failed reading target file `%s`. %v", target, err)
}
if !targetStat.IsDir() {
log.Fatalf("must provide a path to a directory: %s", target)
}
client, err := nomad_api.NewClient(&nomad_api.Config{
SecretID: os.Getenv("NOMAD_TOKEN"),
})
if err != nil {
log.Fatalf("failed creating nomad client: %v", err)
}
switch action {
case "write":
if err = writeDir(client, *root, target); err != nil {
log.Fatalf("Failed writing directory: %v", err)
}
case "read":
if err = readDir(client, *root, target, *newDirPerms); err != nil {
log.Fatalf("Failed reading to files for path %v", err)
}
default:
log.Fatalf("Expected action read or write, found %s", action)
}
} }