Commit Graph

82 Commits

Author SHA1 Message Date
James Bardin 1ccf1bd9a2
Update communicator/ssh/communicator.go
Co-Authored-By: Kristin Laemmert <mildwonkey@users.noreply.github.com>
2019-10-02 15:03:18 -04:00
James Bardin bbde7e3e35 copy client pointer for keep-alive loop
If a connection fails and attempts to reconnect after the keep-alive
loop started, the client will be pulled out from under the keep-alive
requests. Close over a local copy of the client, so that reconnecting
doesn't race with the keepalive loop terminating.
2019-10-02 13:42:22 -04:00
Mark 3031aca971 Add SSH cert authentication method for connection via Bastion 2019-07-21 09:32:48 +03:00
Ahmon Dancy f9db6651b8 Improve ssh connection debug messages
1) Mention the host and port in the "Connecting..." message.

2) Mention the username in the post-connection handshaking message.

3) If handshaking fails, mention the user, host, and port in the error
   message that will eventually be returned to the user.
2019-07-19 08:49:00 -07:00
James Bardin 780ca17884 use keepalive replies to detect dead connections
An ssh server should always send a reply packet to the keepalive
request. If we miss those replies for over 2min, consider the connection
dead and abort, rather than block the provisioner indefinitely.
2019-07-11 09:44:22 -04:00
Justin Downing 1e32ae243c grammatical updates to comments and docs (#20195) 2019-03-21 14:05:41 -07:00
James Bardin bd28b996db
Merge pull request #20449 from hashicorp/jbardin/ssh-keepalive
fix test that diverged between 2 merges
2019-02-22 20:55:01 -05:00
James Bardin 830a00b6b8 fix test that diverged between 2 merges 2019-02-22 20:41:37 -05:00
James Bardin 929231a2e9
Merge pull request #20437 from hashicorp/jbardin/ssh-keepalive
add ssh keepalive messages to communicator
2019-02-22 20:16:45 -05:00
Sherod Taylor c456d9608b updated ssh authentication and testing for ssh 2019-02-22 14:30:50 -05:00
James Bardin b5384100a6 add ssh keepalive messages to communicator
Long running remote-exec commands with no output may be cutoff during
execution. Enable ssh keepalives for all ssh connections.
2019-02-22 14:03:15 -05:00
James Bardin 6cac02df14 print scp error before exiting on error code
See if there is any additional stderr output before exiting, since it
can be helpful in addition to the error status.
2019-02-21 13:42:46 -05:00
James Bardin f68a1a9c76 remove ssh private key contents from errors
A misformatted private key may fail to parse correctly, but might still
contain sensitive data. Don't display the private key in any error
messages.
2019-02-20 15:05:19 -05:00
Eamon Hetherton d1c301bc2d Fix winrm default ssl port (#19540)
* Update provisioner.go

Changed the default port used for winrm when https is specified
2018-12-12 18:19:02 -05:00
James Bardin abfb43555a connect communicator during Start
Match the tested behavior, and that of the ssh implementation, where the
communicator automatically connects when starting a command.

Remove unused import from legacy dependency handling.
2018-04-05 12:54:58 -04:00
James Bardin 82a4552030 use Run instead of Shell.Execute in winrm
The error from a remote command is not exported, and only exposed via
the Run method. Otherwise the Run method works exactly like the
runCommand function being removed.
2018-04-05 12:54:58 -04:00
James Bardin 3c30f04e0e fix ssh logging
Ensure correct formatting and add a log level to all output.
2018-04-05 12:54:58 -04:00
Joe Khoobyar 138e64dee0 more unit tests 2018-03-30 22:05:10 -04:00
Joe Khoobyar 9766cc0aa5 added unit tests 2018-03-30 22:01:49 -04:00
Joe Khoobyar 481be9da35 code reformatted with gofmt 2018-03-30 21:45:09 -04:00
Joe Khoobyar d7cb9baa43 cleaner initialization of winrmcp 2018-03-30 21:32:46 -04:00
Joe Khoobyar 852a74c49d first attempt at supporting NTLM authentication in Terraform 2018-03-30 21:11:53 -04:00
James Bardin 943972cd8f retry ssh authentication failures
Most of the time an ssh authentication failure would be non-recoverable,
but some host images can start the ssh service before it is properly
configured, or before user authentication data is available.

Log ssh authentication errors and allow the provisioner to retry until
the connection timeout.
2018-03-30 15:23:24 -04:00
James Bardin e9e4ee4940
Merge pull request #17609 from hashicorp/jbardin/remote-command
clean up remote.Cmd api
2018-03-23 17:34:06 -04:00
James Bardin ad8642e2c2 have remote.ExitError format errors and status
Since all use cases of ExitStatus are just putting it into fmt.Errorf,
usually with the command string, have ExitStatus do that for the caller.
2018-03-23 11:36:57 -04:00
James Bardin 2954d9849a add some more functionality to MockCommunicator 2018-03-20 14:23:32 -04:00
James Bardin 3fbdee0777 clean up remote.Cmd api
Combine the ExitStatus and Err values from remote.Cmd into an error
returned by Wait, better matching the behavior of the os/exec package.

Non-zero exit codes are returned from Wait as a remote.ExitError.
Communicator related errors are returned directly.

Clean up all the error handling in the provisioners using a
communicator. Also remove the extra copyOutput synchronization that was
copied from package to package.
2018-03-16 14:29:48 -04:00
James Bardin 2d7dc605a0 get communicator errors from a remote.Cmd
The remote.Cmd struct could not convey any transport related error to
the caller, meaning that interrupted commands would show that they
succeeded.

Change Cmd.SetExited to accept an exit status, as well as an error to
store for the caller.  Make the status and error fields internal,
require serialized access through the getter methods.

Users of remote.Cmd should not check both Cmd.Err() and Cmd.ExitStatus()
until after Wait returns.

Require communicators to call Cmd.Init before executing the command.
This will indicate incorrect usage of the remote.Cmd by causing a panic
in SetExitStatus.
2018-03-15 16:03:20 -04:00
James Bardin e41b29d096
Merge pull request #17354 from hashicorp/jbardin/known_hosts
Verify host keys in ssh connections
2018-02-15 18:33:41 -05:00
James Bardin c1b35ad69b have the ssh communicator return fatal errors
This will let the retry loop abort when there are errors which aren't
going to ever be corrected.
2018-02-15 16:14:33 -05:00
James Bardin e06f76b90f Fix type assertion when loading stored error
Fix a bug where the last error was not retrieved from errVal.Load
due to an incorrect type assertion.
2018-02-15 15:59:34 -05:00
James Bardin bc90eca19f add the remote-exec retry function to communicator
Every provisioner that uses communicator implements its own retryFunc.
Take the remote-exec implementation (since it's the most complete) and
put it in the communicator package for each provisioner to use.

Add a public interface `communicator.Fatal`, which can wrap an error to
indicate a fatal error that should not be retried.
2018-02-14 18:18:12 -05:00
James Bardin bdfa97dbdb add tests for signed host certs
This checks that we can verify host certificates signed by a CA
2018-02-14 15:35:41 -05:00
James Bardin 1e7fd1c4ea add test for host key validation
This tests basic known_hosts validation for the ssh communicator.
2018-02-14 15:35:41 -05:00
James Bardin 1a68fdb4f6 add support for ssh host key checking
Add `host_key` and `bastion_host_key` fields to the ssh communicator
config for strict host key checking.

Both fields expect the contents of an openssh formated public key. This
key can either be the remote host's public key, or the public key of the
CA which signed the remote host certificate.

Support for signed certificates is limited, because the provisioner
usually connects to a remote host by ip address rather than hostname, so
the certificate would need to be signed appropriately. Connecting via
a hostname needs to currently be done through a secondary provisioner,
like one attached to a null_resource.
2018-02-14 15:35:41 -05:00
James Bardin daf05e65e0 test identity file parsing 2017-12-26 16:27:18 -05:00
James Bardin 8c8847e1cf sort ssh agent signers by requested id
It's becoming more common for users to have many ssh keys loaded into an
agent, and with the default max auth attempts of an openssh server at 6,
one often needs to specify which id to use in order to avoid a `too many
authentication failures` error.

Add a connection field called `agent_identity` which will function
similarly to the ssh_config IdentityFile when used in conjunction with
an ssh agent. This uses `agent_identity` rather than `identity_file` to
specify that the file is not used directly for authentication, rather
it's used to choose which identity returned from the agent to
authenticate with first.

This feature tries a number of different methods to match the agent
identity. First the provisioner attempts to read the id file and extract
the public key. If that isn't available, we look for a .pub authorized
key file. Either of these will result in a public key that can be
matched directly against the agent keys. Finally we fall back to
matching the comment string exactly, and the id as a suffix. The only
result of using the agent_identity is the reordering of the public keys
used for authentication, and if there is no exact match the client
will still attempt remaining keys until there is an error.
2017-12-26 16:27:18 -05:00
jd3nn1s 21c9c2ce00 communicator/winrm: pass cacert option correctly
It appears that the cacert option for the winrm provisioner was
not getting passed correctly to the winrm package. Log output
showed that CACert was false regardless of configuration.

While the validation of the connector looked for cacert, the winrm
communicator looked for ca_cert.
2017-10-23 13:28:41 -07:00
Adam Shannon c9c2823f62 communicator/ssh: add what error details we can for the user
ssh.Waitmsg's String() method provides output which can include the
process status, signal, and message
2017-10-03 09:06:02 -05:00
Wang Guoliang 383b0c176c
optimization:use bytes.Equal instead of bytes.Compare 2017-09-13 20:58:14 +08:00
Jake Champlin 6e599672e1
Remove LGPL dependencies
This changeset performs the following:

- Updates `masterzen/winrm` vendor to include change from (https://github.com/masterzen/winrm/pull/73)
- Updates `dylanmei/winrmtest` vendor to include change from (https://github.com/dylanmei/winrmtest/pull/4)
- Updates `packer-community/winrmcp` vendor to include the removal of the `masterzen/winrm/winrm` sub-class as a result of the `winrm` CLI tool being removed from the `masterzen/winrm` repository.
- Changes `communicator/winrm/communicator.go` to conform to the new ABI in the `masterzen/winrm` library.

This should completely remove any LGPL licensed dependencies inside of the Terraform project.

```
$ make test
==> Checking that code complies with gofmt requirements...
go generate $(go list ./... | grep -v /terraform/vendor/)
2017/08/20 13:40:16 Generated command/internal_plugin_list.go
go test -i $(go list ./... | grep -v '/terraform/vendor/' | grep -v '/builtin/bins/') || exit 1
echo $(go list ./... | grep -v '/terraform/vendor/' | grep -v '/builtin/bins/') | \
        xargs -t -n4 go test  -timeout=60s -parallel=4
go test -timeout=60s -parallel=4 github.com/hashicorp/terraform github.com/hashicorp/terraform/backend github.com/hashicorp/terraform/backend/atlas github.com/hashicorp/terraform/backend/init
ok      github.com/hashicorp/terraform  0.011s
ok      github.com/hashicorp/terraform/backend  0.020s
ok      github.com/hashicorp/terraform/backend/atlas    0.634s
ok      github.com/hashicorp/terraform/backend/init     0.007s
go test -timeout=60s -parallel=4 github.com/hashicorp/terraform/backend/legacy github.com/hashicorp/terraform/backend/local github.com/hashicorp/terraform/backend/remote-state github.com/hashicorp/terraf
orm/backend/remote-state/azure
ok      github.com/hashicorp/terraform/backend/legacy   0.009s
ok      github.com/hashicorp/terraform/backend/local    0.211s
ok      github.com/hashicorp/terraform/backend/remote-state     0.006s
ok      github.com/hashicorp/terraform/backend/remote-state/azure       0.010s
go test -timeout=60s -parallel=4 github.com/hashicorp/terraform/backend/remote-state/consul github.com/hashicorp/terraform/backend/remote-state/inmem github.com/hashicorp/terraform/backend/remote-state/s
3 github.com/hashicorp/terraform/backend/remote-state/swift
ok      github.com/hashicorp/terraform/backend/remote-state/consul      0.007s
ok      github.com/hashicorp/terraform/backend/remote-state/inmem       0.013s
ok      github.com/hashicorp/terraform/backend/remote-state/s3  0.007s
ok      github.com/hashicorp/terraform/backend/remote-state/swift       0.013s
go test -timeout=60s -parallel=4 github.com/hashicorp/terraform/builtin/providers/test github.com/hashicorp/terraform/builtin/provisioners/chef github.com/hashicorp/terraform/builtin/provisioners/file gi
thub.com/hashicorp/terraform/builtin/provisioners/local-exec
ok      github.com/hashicorp/terraform/builtin/providers/test   1.544s
ok      github.com/hashicorp/terraform/builtin/provisioners/chef        0.017s
ok      github.com/hashicorp/terraform/builtin/provisioners/file        0.006s
ok      github.com/hashicorp/terraform/builtin/provisioners/local-exec  0.078s
go test -timeout=60s -parallel=4 github.com/hashicorp/terraform/builtin/provisioners/remote-exec github.com/hashicorp/terraform/builtin/provisioners/salt-masterless github.com/hashicorp/terraform/command
 github.com/hashicorp/terraform/command/clistate
ok      github.com/hashicorp/terraform/builtin/provisioners/remote-exec 1.037s
ok      github.com/hashicorp/terraform/builtin/provisioners/salt-masterless     0.008s
ok      github.com/hashicorp/terraform/command  14.589s
?       github.com/hashicorp/terraform/command/clistate [no test files]
go test -timeout=60s -parallel=4 github.com/hashicorp/terraform/command/e2etest github.com/hashicorp/terraform/command/format github.com/hashicorp/terraform/communicator github.com/hashicorp/terraform/co
mmunicator/remote
ok      github.com/hashicorp/terraform/command/e2etest  3.729s
ok      github.com/hashicorp/terraform/command/format   0.004s
ok      github.com/hashicorp/terraform/communicator     0.005s
ok      github.com/hashicorp/terraform/communicator/remote      0.003s [no tests to run]
go test -timeout=60s -parallel=4 github.com/hashicorp/terraform/communicator/shared github.com/hashicorp/terraform/communicator/ssh github.com/hashicorp/terraform/communicator/winrm github.com/hashicorp/
terraform/config
ok      github.com/hashicorp/terraform/communicator/shared      0.007s
ok      github.com/hashicorp/terraform/communicator/ssh 0.016s
ok      github.com/hashicorp/terraform/communicator/winrm       0.018s
ok      github.com/hashicorp/terraform/config   0.213s
go test -timeout=60s -parallel=4 github.com/hashicorp/terraform/config/module github.com/hashicorp/terraform/dag github.com/hashicorp/terraform/digraph github.com/hashicorp/terraform/flatmap
ok      github.com/hashicorp/terraform/config/module    0.044s
ok      github.com/hashicorp/terraform/dag      0.010s
ok      github.com/hashicorp/terraform/digraph  0.002s
ok      github.com/hashicorp/terraform/flatmap  0.002s
go test -timeout=60s -parallel=4 github.com/hashicorp/terraform/helper/acctest github.com/hashicorp/terraform/helper/config github.com/hashicorp/terraform/helper/copy github.com/hashicorp/terraform/helpe
r/diff
?       github.com/hashicorp/terraform/helper/acctest   [no test files]
ok      github.com/hashicorp/terraform/helper/config    0.005s
?       github.com/hashicorp/terraform/helper/copy      [no test files]
ok      github.com/hashicorp/terraform/helper/diff      0.005s
go test -timeout=60s -parallel=4 github.com/hashicorp/terraform/helper/encryption github.com/hashicorp/terraform/helper/experiment github.com/hashicorp/terraform/helper/hashcode github.com/hashicorp/terr
aform/helper/hilmapstructure
?       github.com/hashicorp/terraform/helper/encryption        [no test files]
ok      github.com/hashicorp/terraform/helper/experiment        0.001s
ok      github.com/hashicorp/terraform/helper/hashcode  0.001s
?       github.com/hashicorp/terraform/helper/hilmapstructure   [no test files]
go test -timeout=60s -parallel=4 github.com/hashicorp/terraform/helper/logging github.com/hashicorp/terraform/helper/mutexkv github.com/hashicorp/terraform/helper/pathorcontents github.com/hashicorp/terr
aform/helper/resource
?       github.com/hashicorp/terraform/helper/logging   [no test files]
ok      github.com/hashicorp/terraform/helper/mutexkv   0.055s
ok      github.com/hashicorp/terraform/helper/pathorcontents    0.002s
ok      github.com/hashicorp/terraform/helper/resource  2.659s
go test -timeout=60s -parallel=4 github.com/hashicorp/terraform/helper/schema github.com/hashicorp/terraform/helper/shadow github.com/hashicorp/terraform/helper/signalwrapper github.com/hashicorp/terrafo
rm/helper/slowmessage
ok      github.com/hashicorp/terraform/helper/schema    0.063s
ok      github.com/hashicorp/terraform/helper/shadow    0.156s
ok      github.com/hashicorp/terraform/helper/signalwrapper     0.022s
ok      github.com/hashicorp/terraform/helper/slowmessage       0.102s
go test -timeout=60s -parallel=4 github.com/hashicorp/terraform/helper/structure github.com/hashicorp/terraform/helper/validation github.com/hashicorp/terraform/helper/variables github.com/hashicorp/terr
aform/helper/wrappedreadline
ok      github.com/hashicorp/terraform/helper/structure 0.004s
ok      github.com/hashicorp/terraform/helper/validation        0.004s
ok      github.com/hashicorp/terraform/helper/variables 0.006s
?       github.com/hashicorp/terraform/helper/wrappedreadline   [no test files]
go test -timeout=60s -parallel=4 github.com/hashicorp/terraform/helper/wrappedstreams github.com/hashicorp/terraform/moduledeps github.com/hashicorp/terraform/plugin github.com/hashicorp/terraform/plugin
/discovery
?       github.com/hashicorp/terraform/helper/wrappedstreams    [no test files]
ok      github.com/hashicorp/terraform/moduledeps       0.004s
ok      github.com/hashicorp/terraform/plugin   0.046s
ok      github.com/hashicorp/terraform/plugin/discovery 0.029s
go test -timeout=60s -parallel=4 github.com/hashicorp/terraform/repl github.com/hashicorp/terraform/scripts github.com/hashicorp/terraform/state github.com/hashicorp/terraform/state/remote
ok      github.com/hashicorp/terraform/repl     0.006s
ok      github.com/hashicorp/terraform/scripts  0.008s
ok      github.com/hashicorp/terraform/state    2.617s
ok      github.com/hashicorp/terraform/state/remote     0.025s
go test -timeout=60s -parallel=4 github.com/hashicorp/terraform/terraform github.com/hashicorp/terraform/tools/terraform-bundle
go test -timeout=60s -parallel=4 github.com/hashicorp/terraform/terraform github.com/hashicorp/terraform/tools/terraform-bundle
ok      github.com/hashicorp/terraform/terraform        4.222s
?       github.com/hashicorp/terraform/tools/terraform-bundle   [no test files]
```
2017-08-20 13:53:51 -04:00
James Bardin e6f58f5817 Add upload tests
These are skipped without the SSH_UPLOAD_TEST flag, since they require
connecting to a running ssh server on localhost as the current user, and
one creates a very large file.
2017-02-10 10:30:05 -05:00
James Bardin e1f06e5d0f Skip upload copy if we know the length
If the source length is known, we can skip copying the file.
2017-02-10 10:11:31 -05:00
Mitchell Hashimoto b486354a9c
communicator/ssh: Disconnect() should also kill the actual connection 2017-01-26 15:10:03 -08:00
Mitchell Hashimoto a2e044829b
provisioners/file: use the old communicator.New just to minimize risk 2017-01-26 15:03:28 -08:00
Mitchell Hashimoto 02a4adc07c
provisioners/file: convert to helper/schema 2017-01-26 15:03:28 -08:00
Mitchell Hashimoto 4b1d9cfd7d
communicator/ssh: don't share rand object to guarantee unique values
Fixes #10463

I'm really surprised this flew under the radar for years...

By having unique PRNGs, the SSH communicator could and would
generate identical ScriptPaths and two provisioners running in parallel
could overwrite each other and execute the same script. This would
happen because they're both seeded by the current time which could
potentially be identical if done in parallel...

Instead, we share the rand now so that the sequence is guaranteed
unique. As an extra measure of robustness, we also multiple by the PID
so that we're also protected against two processes at the same time.
2016-12-06 00:21:49 -08:00
James Bardin 8174037a2b Remove deprecated key_file and bastion_key_file
These were deprecated in the 0.6.x series. Their functionality was broken
in a recent release which whould have removed them as well.
2016-10-12 14:30:09 -04:00
Sander van Harmelen 968472a63e Support recreating clients and configuring Chef Vaults (#8577)
Fixes #3605 and adds the functionality suggested in PR #7440.

This PR is using a different appraoch that (IMHO) feels cleaner and (even more important) adds support for Windows at the same time.
2016-09-15 14:20:18 +02:00
Kristinn Örn Sigurðsson bc5518f993 provisioners: Allow provisioning over IPv6 2016-09-03 15:45:24 -07:00