terraform/vendor/github.com/go-chef/chef/examples/sandboxes/sandboxes.go

104 lines
2.4 KiB
Go

package main
import (
"bytes"
"crypto/md5"
"crypto/rand"
"encoding/json"
"fmt"
"io/ioutil"
"os"
"github.com/cenkalti/backoff"
"github.com/davecgh/go-spew/spew"
"github.com/go-chef/chef"
)
//random_data makes random byte slice for building junk sandbox data
func random_data(size int) (b []byte) {
b = make([]byte, size)
rand.Read(b)
return
}
func main() {
// read a client key
key, err := ioutil.ReadFile("key.pem")
if err != nil {
fmt.Println("Couldn't read key.pem:", err)
os.Exit(1)
}
// build a client
client, err := chef.NewClient(&chef.Config{
Name: "foo",
Key: string(key),
// goiardi is on port 4545 by default. chef-zero is 8889
BaseURL: "http://localhost:4545",
})
if err != nil {
fmt.Println("Issue setting up client:", err)
os.Exit(1)
}
// create junk files and sums
files := make(map[string][]byte)
sums := make([]string, 10)
for i := 0; i < 10; i++ {
data := random_data(1024)
hashstr := fmt.Sprintf("%x", md5.Sum(data))
files[hashstr] = data
sums[i] = hashstr
}
// post the new sums/files to the sandbox
postResp, err := client.Sandboxes.Post(sums)
if err != nil {
fmt.Println("error making request: ", err)
os.Exit(1)
}
// Dump the the server response data
j, err := json.MarshalIndent(postResp, "", " ")
fmt.Printf("%s", j)
// Let's upload the files that postRep thinks we should upload
for hash, item := range postResp.Checksums {
if item.Upload == true {
if hash == "" {
continue
}
// If you were writing this in your own tool you could just use the FH and let the Reader interface suck out the content instead of doing the convert.
fmt.Printf("\nUploading: %s ---> %v\n\n", hash, item)
req, err := client.NewRequest("PUT", item.Url, bytes.NewReader(files[hash]))
if err != nil {
fmt.Println("This shouldn't happen:", err.Error())
os.Exit(1)
}
// post the files
upload := func() error {
_, err = client.Do(req, nil)
return err
}
// with exp backoff !
err = backoff.Retry(upload, backoff.NewExponentialBackOff())
if err != nil {
fmt.Println("error posting files to the sandbox: ", err.Error())
}
}
}
// Now lets tell the server we have uploaded all the things.
sandbox, err := client.Sandboxes.Put(postResp.ID)
if err != nil {
fmt.Println("Error commiting sandbox: ", err.Error())
os.Exit(1)
}
// and heres yer commited sandbox
spew.Dump(sandbox)
}