packer-cn/main.go

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// This is the main package for the `packer` application.
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//go:generate go run ./scripts/generate-plugins.go
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//go:generate go generate ./common/bootcommand/...
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package main
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import (
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"fmt"
"io"
"io/ioutil"
"log"
"math/rand"
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"os"
"runtime"
"sync"
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"syscall"
"time"
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"github.com/hashicorp/go-uuid"
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"github.com/hashicorp/packer/command"
"github.com/hashicorp/packer/packer"
"github.com/hashicorp/packer/packer/plugin"
Add tmp package that offers Dir & File funcs this regroups the calls of tmp func calls into one package. the tmp pkg allows to store tmp files under a common directory for easier managment Squashed commit of the following: commit 74b674c01560c6b547e9cab5e8afb486f0fe7d6c Merge: fc94b5714 66001525d Author: Matthew Patton <mpatton@enquizit.com> Date: Fri Nov 2 02:02:38 2018 -0400 Merge branch 'remove_TMPDIR_docs' of github.com:tb3088/packer into remove_TMPDIR_docs commit fc94b571428447aaf2e5171967c95cdf9e5c73ff Author: Matthew Patton <mpatton@enquizit.com> Date: Fri Nov 2 01:42:38 2018 -0400 update tests to honor configured temporary directory commit 5a562359f4937af506607dd96ed1c46426093f52 Author: Matthew Patton <mpatton@enquizit.com> Date: Thu Nov 1 18:52:38 2018 -0400 sync straggler to refactor. implement tests at packer/configfile instead of buried in docker. commit 9d5a4a0935bfd049e2f8f50ad73e4455b42c9410 Author: Matthew Patton <mpatton@enquizit.com> Date: Thu Nov 1 15:39:46 2018 -0400 insert URL to GoLang API for os.TempDir() commit fbae4c2e051898aecd8705e9d8a20353430ede23 Author: Matthew Patton <mpatton@enquizit.com> Date: Thu Nov 1 07:41:29 2018 -0400 revise documentation to match code commit 3590fae8bd0afa92a161a49ed794ee32e357d583 Author: Matthew Patton <mpatton@enquizit.com> Date: Thu Nov 1 07:21:59 2018 -0400 refacter config_file. replace all hard-coded os.TempDir with wrapper commit d5c5306a97b648ded06a8eb76ce728f07c9924f0 Author: Matthew Patton <mpatton@enquizit.com> Date: Wed Oct 31 20:11:36 2018 -0400 close massive file overwrite hole with TempDir commit 0a72297da86089fbd07e4f7d9472a92fa4d1c733 Author: Matthew Patton <mpatton@enquizit.com> Date: Wed Oct 31 01:06:00 2018 -0400 adjust var declaration scope commit 20f68228b6c372d984ea5b055cfc8bda9b110ac5 Author: Matthew Patton <mpatton@enquizit.com> Date: Wed Oct 31 00:54:35 2018 -0400 use mktemp() equivalent to create temporary directory commit c73ebe3d8321664a2685a0baa8e441dd895b0db4 Author: Matthew Patton <mpatton@enquizit.com> Date: Tue Oct 30 20:40:58 2018 -0400 remove extraneous variable declaration, fix FOR loop commit 63549b8bd745a0090b15ed0b0ebf644162db27db Author: Matthew Patton <mpatton@enquizit.com> Date: Tue Oct 30 19:30:44 2018 -0400 match styistic convension with rest of docs commit 976101074942db36f10d3a686d6d29ddb7c01926 Author: Matthew Patton <mpatton@enquizit.com> Date: Tue Oct 30 19:08:39 2018 -0400 revert dangling config file change commit 95159afbc05eac96ed11c3183af5fb0abe2f2d5c Author: Matthew Patton <matthew.patton@itgfirm.com> Date: Fri Dec 29 23:53:43 2017 -0500 replace invalid TMPDIR variable wth PACKER_TMP_DIR. update ConfigTmpDir() to try common temporary paths first and only write to configDir() as a last resort. commit 66001525d72de56a4cf9339b900c46f59bc6e91a Author: Matthew Patton <mpatton@enquizit.com> Date: Fri Nov 2 01:42:38 2018 -0400 update tests to honor configured temporary directory commit e9b6adefeae8c65eb8aa47fef38cbf0aa424338c Author: Matthew Patton <mpatton@enquizit.com> Date: Thu Nov 1 18:52:38 2018 -0400 sync straggler to refactor. implement tests at packer/configfile instead of buried in docker. commit 852113ed076e2d14e5dca6815ea680da1e2896bb Author: Matthew Patton <mpatton@enquizit.com> Date: Thu Nov 1 15:39:46 2018 -0400 insert URL to GoLang API for os.TempDir() commit 54add38d1d1c6e283cd444b367ed8bd49a5f3699 Author: Matthew Patton <mpatton@enquizit.com> Date: Thu Nov 1 07:41:29 2018 -0400 revise documentation to match code commit 6b5b8f6d4edad0e187ca13d64ac4118f34eee643 Author: Matthew Patton <mpatton@enquizit.com> Date: Thu Nov 1 07:21:59 2018 -0400 refacter config_file. replace all hard-coded os.TempDir with wrapper commit c22092c601c33484327674f322c7379fa41506d7 Author: Matthew Patton <mpatton@enquizit.com> Date: Wed Oct 31 20:11:36 2018 -0400 close massive file overwrite hole with TempDir commit 7a730450916bf8e5dbc2a741ec233a49466ab7cc Author: Matthew Patton <mpatton@enquizit.com> Date: Wed Oct 31 01:06:00 2018 -0400 adjust var declaration scope commit 0f2933adb6f6922dfeab78a95371a444ec8918ab Author: Matthew Patton <mpatton@enquizit.com> Date: Wed Oct 31 00:54:35 2018 -0400 use mktemp() equivalent to create temporary directory commit d74839ede05dacf712b55a7bb48aec19fe6b007f Author: Matthew Patton <mpatton@enquizit.com> Date: Tue Oct 30 20:40:58 2018 -0400 remove extraneous variable declaration, fix FOR loop commit eb65416619437e4a3dec90277770803dd5b2281c Author: Matthew Patton <mpatton@enquizit.com> Date: Tue Oct 30 19:30:44 2018 -0400 match styistic convension with rest of docs commit acaa2b31ed463219c4ef099f351eec72406e2989 Author: Matthew Patton <mpatton@enquizit.com> Date: Tue Oct 30 19:08:39 2018 -0400 revert dangling config file change commit e573fde668dcb418561e61535c1d68b2888f5b0f Author: Matthew Patton <matthew.patton@itgfirm.com> Date: Fri Dec 29 23:53:43 2017 -0500 replace invalid TMPDIR variable wth PACKER_TMP_DIR. update ConfigTmpDir() to try common temporary paths first and only write to configDir() as a last resort. commit 39a9874afc9dea71b36753375fb7feb61ffecf69 Merge: 8a413cfe8 3315812c2 Author: Matthew Patton <mpatton@enquizit.com> Date: Tue Oct 30 18:19:26 2018 -0400 Merge branch 'master' of https://github.com/hashicorp/packer into prestine commit 8a413cfe83b0a70dbd99c32d936334ca5788ca9b Merge: e07491de5 4e14710a6 Author: Matthew Patton <mpatton@enquizit.com> Date: Mon Oct 1 20:18:10 2018 -0400 Merge remote-tracking branch 'upstream/master' into prestine commit e07491de59cead0b337a7f57f4a6c625e1f560ab Merge: 42610a35d a1fa35dff Author: Matthew Patton <mpatton@enquizit.com> Date: Tue Aug 21 13:26:19 2018 -0400 Merge remote-tracking branch 'upstream/master' into prestine commit 42610a35d5ef65af8844a58ad70e2ec75262da6a Merge: 5298142da 0d63cf7bc Author: Matthew Patton <matthew.patton@itgfirm.com> Date: Tue Jun 19 22:45:05 2018 -0400 Merge remote-tracking branch 'upstream/master' into prestine commit 5298142da6da95354844f201deeeef3c599e48b2 Merge: 7bb110bc7 9d9736552 Author: Matthew Patton <mpatton@enquizit.com> Date: Mon Jun 11 15:10:09 2018 -0400 Merge remote-tracking branch 'upstream/master' into prestine commit 7bb110bc744c9797fcaec25a265d9b85a22d6d6b Merge: a61c869ca 6189d66e7 Author: Matthew Patton <matthew.patton@itgfirm.com> Date: Wed May 9 23:41:22 2018 -0400 Merge remote-tracking branch 'upstream/master' into prestine commit a61c869ca7268acf0e3b1e1fa7a8ee7feea65984 Merge: 098101dd9 4be5f072c Author: Matthew Patton <matthew.patton@itgfirm.com> Date: Fri May 4 10:13:04 2018 -0400 Merge remote-tracking branch 'upstream/master' into prestine commit 098101dd99f08b0ca110d33eff6904537c6d21de Merge: fefaf0fa6 554b2b4a5 Author: Matthew Patton <matthew.patton@itgfirm.com> Date: Tue May 1 20:52:30 2018 -0400 Merge branch 'EOL-handling' into prestine Co-Authored-By: Matthew Patton <pattonme@yahoo.com>
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"github.com/hashicorp/packer/packer/tmp"
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"github.com/hashicorp/packer/version"
"github.com/mitchellh/cli"
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"github.com/mitchellh/panicwrap"
"github.com/mitchellh/prefixedio"
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)
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func main() {
// Call realMain instead of doing the work here so we can use
// `defer` statements within the function and have them work properly.
// (defers aren't called with os.Exit)
os.Exit(realMain())
}
// realMain is executed from main and returns the exit status to exit with.
func realMain() int {
var wrapConfig panicwrap.WrapConfig
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// When following env variable is set, packer
// wont panic wrap itself as it's already wrapped.
// i.e.: when terraform runs it.
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wrapConfig.CookieKey = "PACKER_WRAP_COOKIE"
wrapConfig.CookieValue = "49C22B1A-3A93-4C98-97FA-E07D18C787B5"
if !panicwrap.Wrapped(&wrapConfig) {
// Generate a UUID for this packer run and pass it to the environment.
// GenerateUUID always returns a nil error (based on rand.Read) so we'll
// just ignore it.
UUID, _ := uuid.GenerateUUID()
os.Setenv("PACKER_RUN_UUID", UUID)
// Determine where logs should go in general (requested by the user)
logWriter, err := logOutput()
if err != nil {
fmt.Fprintf(os.Stderr, "Couldn't setup log output: %s", err)
return 1
}
if logWriter == nil {
logWriter = ioutil.Discard
}
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packer.LogSecretFilter.SetOutput(logWriter)
// Disable logging here
log.SetOutput(ioutil.Discard)
// We always send logs to a temporary file that we use in case
// there is a panic. Otherwise, we delete it.
Add tmp package that offers Dir & File funcs this regroups the calls of tmp func calls into one package. the tmp pkg allows to store tmp files under a common directory for easier managment Squashed commit of the following: commit 74b674c01560c6b547e9cab5e8afb486f0fe7d6c Merge: fc94b5714 66001525d Author: Matthew Patton <mpatton@enquizit.com> Date: Fri Nov 2 02:02:38 2018 -0400 Merge branch 'remove_TMPDIR_docs' of github.com:tb3088/packer into remove_TMPDIR_docs commit fc94b571428447aaf2e5171967c95cdf9e5c73ff Author: Matthew Patton <mpatton@enquizit.com> Date: Fri Nov 2 01:42:38 2018 -0400 update tests to honor configured temporary directory commit 5a562359f4937af506607dd96ed1c46426093f52 Author: Matthew Patton <mpatton@enquizit.com> Date: Thu Nov 1 18:52:38 2018 -0400 sync straggler to refactor. implement tests at packer/configfile instead of buried in docker. commit 9d5a4a0935bfd049e2f8f50ad73e4455b42c9410 Author: Matthew Patton <mpatton@enquizit.com> Date: Thu Nov 1 15:39:46 2018 -0400 insert URL to GoLang API for os.TempDir() commit fbae4c2e051898aecd8705e9d8a20353430ede23 Author: Matthew Patton <mpatton@enquizit.com> Date: Thu Nov 1 07:41:29 2018 -0400 revise documentation to match code commit 3590fae8bd0afa92a161a49ed794ee32e357d583 Author: Matthew Patton <mpatton@enquizit.com> Date: Thu Nov 1 07:21:59 2018 -0400 refacter config_file. replace all hard-coded os.TempDir with wrapper commit d5c5306a97b648ded06a8eb76ce728f07c9924f0 Author: Matthew Patton <mpatton@enquizit.com> Date: Wed Oct 31 20:11:36 2018 -0400 close massive file overwrite hole with TempDir commit 0a72297da86089fbd07e4f7d9472a92fa4d1c733 Author: Matthew Patton <mpatton@enquizit.com> Date: Wed Oct 31 01:06:00 2018 -0400 adjust var declaration scope commit 20f68228b6c372d984ea5b055cfc8bda9b110ac5 Author: Matthew Patton <mpatton@enquizit.com> Date: Wed Oct 31 00:54:35 2018 -0400 use mktemp() equivalent to create temporary directory commit c73ebe3d8321664a2685a0baa8e441dd895b0db4 Author: Matthew Patton <mpatton@enquizit.com> Date: Tue Oct 30 20:40:58 2018 -0400 remove extraneous variable declaration, fix FOR loop commit 63549b8bd745a0090b15ed0b0ebf644162db27db Author: Matthew Patton <mpatton@enquizit.com> Date: Tue Oct 30 19:30:44 2018 -0400 match styistic convension with rest of docs commit 976101074942db36f10d3a686d6d29ddb7c01926 Author: Matthew Patton <mpatton@enquizit.com> Date: Tue Oct 30 19:08:39 2018 -0400 revert dangling config file change commit 95159afbc05eac96ed11c3183af5fb0abe2f2d5c Author: Matthew Patton <matthew.patton@itgfirm.com> Date: Fri Dec 29 23:53:43 2017 -0500 replace invalid TMPDIR variable wth PACKER_TMP_DIR. update ConfigTmpDir() to try common temporary paths first and only write to configDir() as a last resort. commit 66001525d72de56a4cf9339b900c46f59bc6e91a Author: Matthew Patton <mpatton@enquizit.com> Date: Fri Nov 2 01:42:38 2018 -0400 update tests to honor configured temporary directory commit e9b6adefeae8c65eb8aa47fef38cbf0aa424338c Author: Matthew Patton <mpatton@enquizit.com> Date: Thu Nov 1 18:52:38 2018 -0400 sync straggler to refactor. implement tests at packer/configfile instead of buried in docker. commit 852113ed076e2d14e5dca6815ea680da1e2896bb Author: Matthew Patton <mpatton@enquizit.com> Date: Thu Nov 1 15:39:46 2018 -0400 insert URL to GoLang API for os.TempDir() commit 54add38d1d1c6e283cd444b367ed8bd49a5f3699 Author: Matthew Patton <mpatton@enquizit.com> Date: Thu Nov 1 07:41:29 2018 -0400 revise documentation to match code commit 6b5b8f6d4edad0e187ca13d64ac4118f34eee643 Author: Matthew Patton <mpatton@enquizit.com> Date: Thu Nov 1 07:21:59 2018 -0400 refacter config_file. replace all hard-coded os.TempDir with wrapper commit c22092c601c33484327674f322c7379fa41506d7 Author: Matthew Patton <mpatton@enquizit.com> Date: Wed Oct 31 20:11:36 2018 -0400 close massive file overwrite hole with TempDir commit 7a730450916bf8e5dbc2a741ec233a49466ab7cc Author: Matthew Patton <mpatton@enquizit.com> Date: Wed Oct 31 01:06:00 2018 -0400 adjust var declaration scope commit 0f2933adb6f6922dfeab78a95371a444ec8918ab Author: Matthew Patton <mpatton@enquizit.com> Date: Wed Oct 31 00:54:35 2018 -0400 use mktemp() equivalent to create temporary directory commit d74839ede05dacf712b55a7bb48aec19fe6b007f Author: Matthew Patton <mpatton@enquizit.com> Date: Tue Oct 30 20:40:58 2018 -0400 remove extraneous variable declaration, fix FOR loop commit eb65416619437e4a3dec90277770803dd5b2281c Author: Matthew Patton <mpatton@enquizit.com> Date: Tue Oct 30 19:30:44 2018 -0400 match styistic convension with rest of docs commit acaa2b31ed463219c4ef099f351eec72406e2989 Author: Matthew Patton <mpatton@enquizit.com> Date: Tue Oct 30 19:08:39 2018 -0400 revert dangling config file change commit e573fde668dcb418561e61535c1d68b2888f5b0f Author: Matthew Patton <matthew.patton@itgfirm.com> Date: Fri Dec 29 23:53:43 2017 -0500 replace invalid TMPDIR variable wth PACKER_TMP_DIR. update ConfigTmpDir() to try common temporary paths first and only write to configDir() as a last resort. commit 39a9874afc9dea71b36753375fb7feb61ffecf69 Merge: 8a413cfe8 3315812c2 Author: Matthew Patton <mpatton@enquizit.com> Date: Tue Oct 30 18:19:26 2018 -0400 Merge branch 'master' of https://github.com/hashicorp/packer into prestine commit 8a413cfe83b0a70dbd99c32d936334ca5788ca9b Merge: e07491de5 4e14710a6 Author: Matthew Patton <mpatton@enquizit.com> Date: Mon Oct 1 20:18:10 2018 -0400 Merge remote-tracking branch 'upstream/master' into prestine commit e07491de59cead0b337a7f57f4a6c625e1f560ab Merge: 42610a35d a1fa35dff Author: Matthew Patton <mpatton@enquizit.com> Date: Tue Aug 21 13:26:19 2018 -0400 Merge remote-tracking branch 'upstream/master' into prestine commit 42610a35d5ef65af8844a58ad70e2ec75262da6a Merge: 5298142da 0d63cf7bc Author: Matthew Patton <matthew.patton@itgfirm.com> Date: Tue Jun 19 22:45:05 2018 -0400 Merge remote-tracking branch 'upstream/master' into prestine commit 5298142da6da95354844f201deeeef3c599e48b2 Merge: 7bb110bc7 9d9736552 Author: Matthew Patton <mpatton@enquizit.com> Date: Mon Jun 11 15:10:09 2018 -0400 Merge remote-tracking branch 'upstream/master' into prestine commit 7bb110bc744c9797fcaec25a265d9b85a22d6d6b Merge: a61c869ca 6189d66e7 Author: Matthew Patton <matthew.patton@itgfirm.com> Date: Wed May 9 23:41:22 2018 -0400 Merge remote-tracking branch 'upstream/master' into prestine commit a61c869ca7268acf0e3b1e1fa7a8ee7feea65984 Merge: 098101dd9 4be5f072c Author: Matthew Patton <matthew.patton@itgfirm.com> Date: Fri May 4 10:13:04 2018 -0400 Merge remote-tracking branch 'upstream/master' into prestine commit 098101dd99f08b0ca110d33eff6904537c6d21de Merge: fefaf0fa6 554b2b4a5 Author: Matthew Patton <matthew.patton@itgfirm.com> Date: Tue May 1 20:52:30 2018 -0400 Merge branch 'EOL-handling' into prestine Co-Authored-By: Matthew Patton <pattonme@yahoo.com>
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logTempFile, err := tmp.File("packer-log")
if err != nil {
fmt.Fprintf(os.Stderr, "Couldn't setup logging tempfile: %s", err)
return 1
}
defer os.Remove(logTempFile.Name())
defer logTempFile.Close()
// Tell the logger to log to this file
os.Setenv(EnvLog, "")
os.Setenv(EnvLogFile, "")
// Setup the prefixed readers that send data properly to
// stdout/stderr.
doneCh := make(chan struct{})
outR, outW := io.Pipe()
go copyOutput(outR, doneCh)
// Enable checkpoint for panic reporting
if config, _ := loadConfig(); config != nil && !config.DisableCheckpoint {
packer.CheckpointReporter = packer.NewCheckpointReporter(
config.DisableCheckpointSignature,
)
}
// Create the configuration for panicwrap and wrap our executable
wrapConfig.Handler = panicHandler(logTempFile)
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wrapConfig.Writer = io.MultiWriter(logTempFile, &packer.LogSecretFilter)
wrapConfig.Stdout = outW
wrapConfig.DetectDuration = 500 * time.Millisecond
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wrapConfig.ForwardSignals = []os.Signal{syscall.SIGTERM}
exitStatus, err := panicwrap.Wrap(&wrapConfig)
if err != nil {
fmt.Fprintf(os.Stderr, "Couldn't start Packer: %s", err)
return 1
}
// If >= 0, we're the parent, so just exit
if exitStatus >= 0 {
// Close the stdout writer so that our copy process can finish
outW.Close()
// Wait for the output copying to finish
<-doneCh
return exitStatus
}
// We're the child, so just close the tempfile we made in order to
// save file handles since the tempfile is only used by the parent.
logTempFile.Close()
}
// Call the real main
return wrappedMain()
}
// wrappedMain is called only when we're wrapped by panicwrap and
// returns the exit status to exit with.
func wrappedMain() int {
// If there is no explicit number of Go threads to use, then set it
if os.Getenv("GOMAXPROCS") == "" {
runtime.GOMAXPROCS(runtime.NumCPU())
}
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packer.LogSecretFilter.SetOutput(os.Stderr)
log.SetOutput(&packer.LogSecretFilter)
inPlugin := os.Getenv(plugin.MagicCookieKey) == plugin.MagicCookieValue
if inPlugin {
// This prevents double-logging timestamps
log.SetFlags(0)
}
build using HCL2 (#8423) This follows #8232 which added the code to generate the code required to parse HCL files for each packer component. All old config files of packer will keep on working the same. Packer takes one argument. When a directory is passed, all files in the folder with a name ending with “.pkr.hcl” or “.pkr.json” will be parsed using the HCL2 format. When a file ending with “.pkr.hcl” or “.pkr.json” is passed it will be parsed using the HCL2 format. For every other case; the old packer style will be used. ## 1. the hcl2template pkg can create a packer.Build from a set of HCL (v2) files I had to make the packer.coreBuild (which is our one and only packer.Build ) a public struct with public fields ## 2. Components interfaces get a new ConfigSpec Method to read a file from an HCL file. This is a breaking change for packer plugins. a packer component can be a: builder/provisioner/post-processor each component interface now gets a `ConfigSpec() hcldec.ObjectSpec` which allows packer to tell what is the layout of the hcl2 config meant to configure that specific component. This ObjectSpec is sent through the wire (RPC) and a cty.Value is now sent through the already existing configuration entrypoints: Provisioner.Prepare(raws ...interface{}) error Builder.Prepare(raws ...interface{}) ([]string, error) PostProcessor.Configure(raws ...interface{}) error close #1768 Example hcl files: ```hcl // file amazon-ebs-kms-key/run.pkr.hcl build { sources = [ "source.amazon-ebs.first", ] provisioner "shell" { inline = [ "sleep 5" ] } post-processor "shell-local" { inline = [ "sleep 5" ] } } // amazon-ebs-kms-key/source.pkr.hcl source "amazon-ebs" "first" { ami_name = "hcl2-test" region = "us-east-1" instance_type = "t2.micro" kms_key_id = "c729958f-c6ba-44cd-ab39-35ab68ce0a6c" encrypt_boot = true source_ami_filter { filters { virtualization-type = "hvm" name = "amzn-ami-hvm-????.??.?.????????-x86_64-gp2" root-device-type = "ebs" } most_recent = true owners = ["amazon"] } launch_block_device_mappings { device_name = "/dev/xvda" volume_size = 20 volume_type = "gp2" delete_on_termination = "true" } launch_block_device_mappings { device_name = "/dev/xvdf" volume_size = 500 volume_type = "gp2" delete_on_termination = true encrypted = true } ami_regions = ["eu-central-1"] run_tags { Name = "packer-solr-something" stack-name = "DevOps Tools" } communicator = "ssh" ssh_pty = true ssh_username = "ec2-user" associate_public_ip_address = true } ```
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log.Printf("[INFO] Packer version: %s [%s %s %s]",
version.FormattedVersion(),
runtime.Version(),
runtime.GOOS, runtime.GOARCH)
// The config being loaded here is the Packer config -- it defines
// the location of third party builder plugins, plugin ports to use, and
// whether to disable telemetry. It is a global config.
// Do not confuse this config with the .json Packer template which gets
// passed into commands like `packer build`
config, err := loadConfig()
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if err != nil {
fmt.Fprintf(os.Stderr, "Error loading configuration: \n\n%s\n", err)
return 1
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}
// Fire off the checkpoint.
go runCheckpoint(config)
if !config.DisableCheckpoint {
packer.CheckpointReporter = packer.NewCheckpointReporter(
config.DisableCheckpointSignature,
)
}
cacheDir, err := packer.CachePath()
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if err != nil {
fmt.Fprintf(os.Stderr, "Error preparing cache directory: \n\n%s\n", err)
return 1
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}
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log.Printf("Setting cache directory: %s", cacheDir)
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// Determine if we're in machine-readable mode by mucking around with
// the arguments...
args, machineReadable := extractMachineReadable(os.Args[1:])
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defer plugin.CleanupClients()
var ui packer.Ui
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if machineReadable {
// Setup the UI as we're being machine-readable
ui = &packer.MachineReadableUi{
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Writer: os.Stdout,
}
// Set this so that we don't get colored output in our machine-
// readable UI.
if err := os.Setenv("PACKER_NO_COLOR", "1"); err != nil {
fmt.Fprintf(os.Stderr, "Packer failed to initialize UI: %s\n", err)
return 1
}
} else {
basicUi := &packer.BasicUi{
Reader: os.Stdin,
Writer: os.Stdout,
ErrorWriter: os.Stdout,
}
ui = basicUi
if !inPlugin {
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currentPID := os.Getpid()
backgrounded, err := checkProcess(currentPID)
if err != nil {
fmt.Fprintf(os.Stderr, "cannot determine if process is in "+
"background: %s\n", err)
}
if backgrounded {
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fmt.Fprint(os.Stderr, "Running in background, not using a TTY\n")
} else if TTY, err := openTTY(); err != nil {
fmt.Fprintf(os.Stderr, "No tty available: %s\n", err)
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} else {
basicUi.TTY = TTY
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defer TTY.Close()
}
}
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}
// Create the CLI meta
CommandMeta = &command.Meta{
CoreConfig: &packer.CoreConfig{
Components: packer.ComponentFinder{
build using HCL2 (#8423) This follows #8232 which added the code to generate the code required to parse HCL files for each packer component. All old config files of packer will keep on working the same. Packer takes one argument. When a directory is passed, all files in the folder with a name ending with “.pkr.hcl” or “.pkr.json” will be parsed using the HCL2 format. When a file ending with “.pkr.hcl” or “.pkr.json” is passed it will be parsed using the HCL2 format. For every other case; the old packer style will be used. ## 1. the hcl2template pkg can create a packer.Build from a set of HCL (v2) files I had to make the packer.coreBuild (which is our one and only packer.Build ) a public struct with public fields ## 2. Components interfaces get a new ConfigSpec Method to read a file from an HCL file. This is a breaking change for packer plugins. a packer component can be a: builder/provisioner/post-processor each component interface now gets a `ConfigSpec() hcldec.ObjectSpec` which allows packer to tell what is the layout of the hcl2 config meant to configure that specific component. This ObjectSpec is sent through the wire (RPC) and a cty.Value is now sent through the already existing configuration entrypoints: Provisioner.Prepare(raws ...interface{}) error Builder.Prepare(raws ...interface{}) ([]string, error) PostProcessor.Configure(raws ...interface{}) error close #1768 Example hcl files: ```hcl // file amazon-ebs-kms-key/run.pkr.hcl build { sources = [ "source.amazon-ebs.first", ] provisioner "shell" { inline = [ "sleep 5" ] } post-processor "shell-local" { inline = [ "sleep 5" ] } } // amazon-ebs-kms-key/source.pkr.hcl source "amazon-ebs" "first" { ami_name = "hcl2-test" region = "us-east-1" instance_type = "t2.micro" kms_key_id = "c729958f-c6ba-44cd-ab39-35ab68ce0a6c" encrypt_boot = true source_ami_filter { filters { virtualization-type = "hvm" name = "amzn-ami-hvm-????.??.?.????????-x86_64-gp2" root-device-type = "ebs" } most_recent = true owners = ["amazon"] } launch_block_device_mappings { device_name = "/dev/xvda" volume_size = 20 volume_type = "gp2" delete_on_termination = "true" } launch_block_device_mappings { device_name = "/dev/xvdf" volume_size = 500 volume_type = "gp2" delete_on_termination = true encrypted = true } ami_regions = ["eu-central-1"] run_tags { Name = "packer-solr-something" stack-name = "DevOps Tools" } communicator = "ssh" ssh_pty = true ssh_username = "ec2-user" associate_public_ip_address = true } ```
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Hook: config.StarHook,
BuilderStore: config.Builders,
ProvisionerStore: config.Provisioners,
PostProcessorStore: config.PostProcessors,
},
Version: version.Version,
},
Ui: ui,
}
cli := &cli.CLI{
Args: args,
Autocomplete: true,
Commands: Commands,
HelpFunc: excludeHelpFunc(Commands, []string{"plugin"}),
HelpWriter: os.Stdout,
Name: "packer",
Version: version.Version,
}
exitCode, err := cli.Run()
if !inPlugin {
if err := packer.CheckpointReporter.Finalize(cli.Subcommand(), exitCode, err); err != nil {
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log.Printf("[WARN] (telemetry) Error finalizing report. This is safe to ignore. %s", err.Error())
}
}
if err != nil {
fmt.Fprintf(os.Stderr, "Error executing CLI: %s\n", err)
return 1
}
return exitCode
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}
// excludeHelpFunc filters commands we don't want to show from the list of
// commands displayed in packer's help text.
func excludeHelpFunc(commands map[string]cli.CommandFactory, exclude []string) cli.HelpFunc {
// Make search slice into a map so we can use use the `if found` idiom
// instead of a nested loop.
var excludes = make(map[string]interface{}, len(exclude))
for _, item := range exclude {
excludes[item] = nil
}
// Create filtered list of commands
helpCommands := []string{}
for command := range commands {
if _, found := excludes[command]; !found {
helpCommands = append(helpCommands, command)
}
}
return cli.FilteredHelpFunc(helpCommands, cli.BasicHelpFunc("packer"))
}
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// extractMachineReadable checks the args for the machine readable
// flag and returns whether or not it is on. It modifies the args
// to remove this flag.
func extractMachineReadable(args []string) ([]string, bool) {
for i, arg := range args {
if arg == "-machine-readable" {
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// We found it. Slice it out.
result := make([]string, len(args)-1)
copy(result, args[:i])
copy(result[i:], args[i+1:])
return result, true
}
}
return args, false
}
func loadConfig() (*config, error) {
var config config
2014-09-02 18:29:37 -04:00
config.PluginMinPort = 10000
config.PluginMaxPort = 25000
build using HCL2 (#8423) This follows #8232 which added the code to generate the code required to parse HCL files for each packer component. All old config files of packer will keep on working the same. Packer takes one argument. When a directory is passed, all files in the folder with a name ending with “.pkr.hcl” or “.pkr.json” will be parsed using the HCL2 format. When a file ending with “.pkr.hcl” or “.pkr.json” is passed it will be parsed using the HCL2 format. For every other case; the old packer style will be used. ## 1. the hcl2template pkg can create a packer.Build from a set of HCL (v2) files I had to make the packer.coreBuild (which is our one and only packer.Build ) a public struct with public fields ## 2. Components interfaces get a new ConfigSpec Method to read a file from an HCL file. This is a breaking change for packer plugins. a packer component can be a: builder/provisioner/post-processor each component interface now gets a `ConfigSpec() hcldec.ObjectSpec` which allows packer to tell what is the layout of the hcl2 config meant to configure that specific component. This ObjectSpec is sent through the wire (RPC) and a cty.Value is now sent through the already existing configuration entrypoints: Provisioner.Prepare(raws ...interface{}) error Builder.Prepare(raws ...interface{}) ([]string, error) PostProcessor.Configure(raws ...interface{}) error close #1768 Example hcl files: ```hcl // file amazon-ebs-kms-key/run.pkr.hcl build { sources = [ "source.amazon-ebs.first", ] provisioner "shell" { inline = [ "sleep 5" ] } post-processor "shell-local" { inline = [ "sleep 5" ] } } // amazon-ebs-kms-key/source.pkr.hcl source "amazon-ebs" "first" { ami_name = "hcl2-test" region = "us-east-1" instance_type = "t2.micro" kms_key_id = "c729958f-c6ba-44cd-ab39-35ab68ce0a6c" encrypt_boot = true source_ami_filter { filters { virtualization-type = "hvm" name = "amzn-ami-hvm-????.??.?.????????-x86_64-gp2" root-device-type = "ebs" } most_recent = true owners = ["amazon"] } launch_block_device_mappings { device_name = "/dev/xvda" volume_size = 20 volume_type = "gp2" delete_on_termination = "true" } launch_block_device_mappings { device_name = "/dev/xvdf" volume_size = 500 volume_type = "gp2" delete_on_termination = true encrypted = true } ami_regions = ["eu-central-1"] run_tags { Name = "packer-solr-something" stack-name = "DevOps Tools" } communicator = "ssh" ssh_pty = true ssh_username = "ec2-user" associate_public_ip_address = true } ```
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config.Builders = packer.MapOfBuilder{}
config.PostProcessors = packer.MapOfPostProcessor{}
config.Provisioners = packer.MapOfProvisioner{}
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if err := config.Discover(); err != nil {
return nil, err
}
// start by loading from PACKER_CONFIG if available
log.Print("Checking 'PACKER_CONFIG' for a config file path")
configFilePath := os.Getenv("PACKER_CONFIG")
if configFilePath == "" {
var err error
log.Print("'PACKER_CONFIG' not set; checking the default config file path")
configFilePath, err = packer.ConfigFile()
if err != nil {
2013-07-09 02:28:07 -04:00
log.Printf("Error detecting default config file path: %s", err)
}
}
if configFilePath == "" {
return &config, nil
}
log.Printf("Attempting to open config file: %s", configFilePath)
f, err := os.Open(configFilePath)
if err != nil {
if !os.IsNotExist(err) {
return nil, err
}
2015-06-13 17:05:38 -04:00
log.Printf("[WARN] Config file doesn't exist: %s", configFilePath)
return &config, nil
}
defer f.Close()
// This loads a json config, defined in packer/config.go
if err := decodeConfig(f, &config); err != nil {
return nil, err
}
config.LoadExternalComponentsFromConfig()
return &config, nil
}
// copyOutput uses output prefixes to determine whether data on stdout
// should go to stdout or stderr. This is due to panicwrap using stderr
// as the log and error channel.
func copyOutput(r io.Reader, doneCh chan<- struct{}) {
defer close(doneCh)
pr, err := prefixedio.NewReader(r)
if err != nil {
panic(err)
}
stderrR, err := pr.Prefix(ErrorPrefix)
if err != nil {
panic(err)
}
stdoutR, err := pr.Prefix(OutputPrefix)
if err != nil {
panic(err)
}
defaultR, err := pr.Prefix("")
if err != nil {
panic(err)
}
var wg sync.WaitGroup
wg.Add(3)
go func() {
defer wg.Done()
io.Copy(os.Stderr, stderrR)
}()
go func() {
defer wg.Done()
io.Copy(os.Stdout, stdoutR)
}()
go func() {
defer wg.Done()
io.Copy(os.Stdout, defaultR)
}()
wg.Wait()
}
func init() {
// Seed the random number generator
rand.Seed(time.Now().UTC().UnixNano())
}