Hi all,
I am attempting to add an ansible local provisioner to the MAAS Cent OS 7 packer build file and it crashes every time with a “Build ‘qemu’ errored: unexpected EOF” and “panic: runtime error: invalid memory address or nil pointer dereference” error.
I have tried plain shell commands as the provisioner and I still get the same error. The qemu builder will get to the Provisioning section, try whatever Provisioner I am using (I have tried Ansible remote & local, and shell), and will fail immediately. I can’t even use the VNC because it crashes so quickly. If I remove the provisioners, the install work. I can even use the VNC. What am I doing wrong if I may ask? I have listed the build machine specs and packer version below. Thanks for the help in advance.
Build Machine
Dell Precision T3610: Intel® Xeon® E5-1603 Processor & 32 GB Ram
Packer Version
1.5.4
Modified Build File
{
“provisioners”: [
{
“type”: “shell”,
“inline”: [“sudo yum install epel-release”,“sudo yum install ansible”]
},
{
“type”: “ansible-local”,
“playbook_file”: “./playbook.yml”,
“role_paths”: ["./roles"]
}
],
“builders”: [
{
“type”: “qemu”,
“communicator”: “none”,
“iso_url”: “https://mirrors.edge.kernel.org/centos/7.7.1908/isos/x86_64/CentOS-7-x86_64-NetInstall-1908.iso”,
“iso_checksum_type”: “sha256”,
“iso_checksum_url”: “https://mirrors.edge.kernel.org/centos/7.7.1908/isos/x86_64/sha256sum.txt”,
“boot_command”: [
" ",
"inst.ks=http://{{ .HTTPIP }}:{{ .HTTPPort }}/centos7.ks ",
“”
],
“boot_wait”: “3s”,
“disk_size”: “4G”,
“headless”: true,
“memory”: 1024,
“http_directory”: “http”,
“shutdown_timeout”: “20m”
}
],
“post-processors”: [
{
“type”: “shell-local”,
“inline_shebang”: “/bin/bash -e”,
“inline”: [
“TMP_DIR=$(mktemp -d /tmp/packer-maas-XXXX)”,
“echo ‘Mounting image…’”,
“modprobe nbd”,
“qemu-nbd -d /dev/nbd4”,
“qemu-nbd -c /dev/nbd4 -n output-qemu/packer-qemu”,
“echo ‘Waiting for partitions to be created…’”,
“tries=0”,
“while [ ! -e /dev/nbd4p1 -a tries -lt 60 ]; do",
" sleep 1",
" tries=((tries+1))”,
“done”,
“echo ‘Tarring up image…’”,
“mount /dev/nbd4p1 $TMP_DIR”,
“tar -czpf centos7.tar.gz -C $TMP_DIR .”,
“echo ‘Unmounting image…’”,
“umount $TMP_DIR”,
“qemu-nbd -d /dev/nbd4”,
“rmdir $TMP_DIR”
]
}
]
}
Error
==> qemu: Connecting to VM via VNC (127.0.0.1:5980)
==> qemu: Typing the boot command over VNC…
==> qemu: Provisioning with shell script: /tmp/packer-shell750892231
Build ‘qemu’ errored: unexpected EOF
==> Some builds didn’t complete successfully and had errors:
–> qemu: unexpected EOF
==> Builds finished but no artifacts were created.
panic: runtime error: invalid memory address or nil pointer dereference
2020/03/06 10:12:56 packer-builder-qemu plugin: [signal SIGSEGV: segmentation violation code=0x1 addr=0x30 pc=0xf8da7d]
2020/03/06 10:12:56 packer-builder-qemu plugin:
2020/03/06 10:12:56 packer-builder-qemu plugin: goroutine 170 [running]:
2020/03/06 10:12:56 packer-builder-qemu plugin: github.com/hashicorp/packer/packer/rpc.(*CommunicatorServer).Upload(0xc0002d4990, 0xc00059a420, 0xc000414880, 0x0, 0x0)
2020/03/06 10:12:56 packer-builder-qemu plugin: /Users/mmarsh/Projects/packer/packer/rpc/communicator.go:301 +0xfd
2020/03/06 10:12:56 packer-builder-qemu plugin: reflect.Value.call(0xc0004ccd20, 0xc0004f2188, 0x13, 0x422ae46, 0x4, 0xc00074af18, 0x3, 0x3, 0x610a534146764472, 0x4f4c616b574f6764, …)
2020/03/06 10:12:56 packer-builder-qemu plugin: /usr/local/go/src/reflect/value.go:460 +0x5f6
2020/03/06 10:12:56 packer-builder-qemu plugin: reflect.Value.Call(0xc0004ccd20, 0xc0004f2188, 0x13, 0xc000620f18, 0x3, 0x3, 0x504144517749306f, 0x424d5248564e6742, 0x4441544245386641)
2020/03/06 10:12:56 packer-builder-qemu plugin: /usr/local/go/src/reflect/value.go:321 +0xb4
2020/03/06 10:12:56 packer-builder-qemu plugin: net/rpc.(*service).call(0xc00041e280, 0xc00056e7d0, 0xc00065b358, 0xc00065b360, 0xc000428e00, 0xc00059a3a0, 0x3468e20, 0xc00059a420, 0x16, 0x34e18e0, …)
2020/03/06 10:12:56 packer-builder-qemu plugin: /usr/local/go/src/net/rpc/server.go:377 +0x16f
2020/03/06 10:12:56 packer-builder-qemu plugin: created by net/rpc.(*Server).ServeCodec
2020/03/06 10:12:56 packer-builder-qemu plugin: /usr/local/go/src/net/rpc/server.go:474 +0x42b
2020/03/06 10:12:56 /usr/bin/packer: plugin process exited
2020/03/06 10:12:56 [INFO] (telemetry) ending qemu
2020/03/06 10:12:56 ui error: Build ‘qemu’ errored: unexpected EOF
2020/03/06 10:12:56 machine readable: error-count string{“1”}
2020/03/06 10:12:56 ui error:
==> Some builds didn’t complete successfully and had errors:
2020/03/06 10:12:56 machine readable: qemu,error string{“unexpected EOF”}
2020/03/06 10:12:56 ui error: --> qemu: unexpected EOF
2020/03/06 10:12:56 ui:
==> Builds finished but no artifacts were created.
2020/03/06 10:12:56 [INFO] (telemetry) Finalizing.
2020/03/06 10:12:56 packer-provisioner-shell plugin: Retryable error: Error uploading script: unexpected EOF
2020/03/06 10:12:56 waiting for all plugin processes to complete…
2020/03/06 10:12:56 /usr/bin/packer: plugin process exited
2020/03/06 10:12:56 [INFO] (telemetry) ending shell
2020/03/06 10:12:56 /usr/bin/packer: plugin process exited
2020/03/06 10:12:56 /usr/bin/packer: plugin process exited
!!! PACKER CRASH !!!
Packer crashed! This is always indicative of a bug within Packer.
A crash log has been placed at “crash.log” relative to your current
working directory. It would be immensely helpful if you could please
report the crash with Packer1 so that we can fix this.
Either is your error in the kickstart file or maybe the file isn’t at the right place where packer expects it. The port to upload the file should be open, too.