Enable PCAP collection

• Whitelist systemd units we're interested in monitoring.
• Add docker and kubelet to the list of monitored services. #325
• Add node-exporter process metrics and faster sandbox deploys (#328)
• Return traceroute to polling ss to prevent segfault frequency #330
• Deploy packet-headers unconditionally (#332)

Weekly release

This release mostly includes changes to various scripts and their configurations i.e., not affecting pods, with the exception of configuring the node-exporter DaemonSet to export systemd metrics.

• Adds a new script for upgrading all cloud nodes in the platform cluster.
• Increases the Prometheus VM's persistent disk from 200GB to 500GB.
• Increases machine type for master VMs in production (was n1-standard-4, now is n1-standard-8).
• Updates k8s/component versions in k8s_deploy.conf.
• Removes "legacy" --config flag from the kubeadm upgrade command.
• Enables node-exporters systemd collector.

Rollback `-tcpinfo.socket` flag to traceroute caller

This release is to address a memory, fd, and segfault issue with traceroute-caller possibly caused by the change to tcpinfo #314

Enable DSACK collection, add nginx-ingress + cert-manager

Do not install cert-manager's webhook component (#313)

* Disable cert-manager's webhook component.

* Fix typo.

Fix NDT S2C test for legacy clients + several small fixes

Merge pull request #303 from m-lab/sandbox-roberto-remove-pcap-datatype

Temporarily remove the pcap datatype from pusher

Upgrade traceroute caller Docker Image to v0.2.2

Meta line will have "CachedResult" and "CachedUUID"

Upgrade traceroute caller Docker Image to v0.2.0

Merge pull request #286 from m-lab/sandbox-tcversion

Update Docker image version for traceroute caller

Bump NDT to v0.13.2

Fixes the last few resource leaks.

Weekly release

• New neubot/dash DaemonSet.
• Updates traceroute-caller container to v0.1.0.
• Updates utilization container to v2.0.7, which disables rsyncd.

Bump NDT version to v0.13.0

#275