Add network packet-capture

[dustman9000]

This adds a new domain (network) and action: (packet-capture) which runs a privileged tcpdump on nodes for a given duration (60s). After completion, will copy the .pcap files to the local directory (./capture-output/).

Options:

$ osdctl help network packet-capture
Start packet capture

Options:
  -d, --duration=60: Duration (in seconds) of packet capture
      --name='packet-capture': Name of Daemonset
  -n, --namespace='default': Namespace to deploy Daemonset
      --node-label-key='node-role.kubernetes.io/worker': Node label key
      --node-label-value='': Node label value

Usage:
  osdctl network packet-capture [flags] [options]

Use "osdctl options" for a list of global command-line options (applies to all commands).

Example run:

dustinrow@drow-mac:~/src/osd-utils-cli$ ./bin/osdctl network packet-capture
2020/12/09 20:53:51 Ensuring Packet Capture Daemonset
2020/12/09 20:53:51 Successfully ensured packet capture daemonset
2020/12/09 20:53:51 Waiting For Packet Capture Daemonset
2020/12/09 20:55:01 Copying Files From Packet Capture Pods
2020/12/09 20:55:01 Copying files from packet-capture-28qck
tar: Removing leading `/' from member names
2020/12/09 20:55:02 Copying files from packet-capture-8rsp7
tar: Removing leading `/' from member names
2020/12/09 20:55:03 Copying files from packet-capture-cxlnj
tar: Removing leading `/' from member names
2020/12/09 20:55:05 Copying files from packet-capture-jsbn7
tar: Removing leading `/' from member names
2020/12/09 20:55:07 Copying files from packet-capture-n5x7q
tar: Removing leading `/' from member names
2020/12/09 20:55:08 Copying files from packet-capture-vhcgj
tar: Removing leading `/' from member names
2020/12/09 20:55:09 Deleting Packet Capture Daemonset
dustinrow@drow-mac:~/src/osd-utils-cli$ ls -al ./capture-output/
total 5968
drwxr-xr-x  8 dustinrow staff     256 Dec  9 20:55 .
drwxr-xr-x 19 dustinrow staff     608 Dec  9 20:55 ..
-rw-r--r--  1 dustinrow staff  22972 Dec 14 13:56 ip-10-0-149-114.us-west-2.compute.internal-20201214T215510.pcap
-rw-r--r--  1 dustinrow staff  23310 Dec 14 13:56 ip-10-0-166-239.us-west-2.compute.internal-20201214T215510.pcap
-rw-r--r--  1 dustinrow staff  73776 Dec 14 13:56 ip-10-0-180-197.us-west-2.compute.internal-20201214T215510.pcap
-rw-r--r--  1 dustinrow staff  93627 Dec 14 13:54 ip-10-0-201-138.us-west-2.compute.internal-20201214T215359.pcap
-rw-r--r--  1 dustinrow staff  84173 Dec 14 13:56 ip-10-0-201-138.us-west-2.compute.internal-20201214T215510.pcap
-rw-r--r--  1 dustinrow staff  62683 Dec 14 13:56 ip-10-0-211-217.us-west-2.compute.internal-20201214T215510.pcap
-rw-r--r--  1 dustinrow staff 576531 Dec 14 13:54 ip-10-0-228-43.us-west-2.compute.internal-20201214T215359.pcap
-rw-r--r--  1 dustinrow staff 648548 Dec 14 13:56 ip-10-0-228-43.us-west-2.compute.internal-20201214T215510.pcap

[dustman9000]

/assign @rogbas
/assign @jharrington22

[iamkirkbater]

Overall the code looks good, I still have to build/test locally. Just a few small things we can discuss but nothing that should block this getting in.

[dustman9000]

/label tide/merge-method-squash

[rogbas]

Overall the change is looking good, I just added a question that not necessarily blocks merging this PR.

[rogbas]

/lgtm
/approve

[openshift-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: dustman9000, rogbas

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