networking file for custom DHCP subnet for the NAT network.vmnet-cli commands to refresh the dhcpd.conf file.VMNET_1 is for the Host-only network config.VMNET_8 is for the NAT network config.
| #!ipxe | |
| # ubuntu focal 20.04 | |
| # $seedfrom used to find the user-data and meta-data files by nocloud-net provider for cloud-init. | |
| # the trailing slash is important, the cloud-init sticks 'meta-data' or 'user-data' right after it, without prepending a forward slash. | |
| set seedfrom http://repo/files/ubuntu2004/ | |
| # $base url is where the vmlinuz and initrd live. | |
| # they were fished out from the live-server iso file. the iso file is also in this directory. | |
| set base http://repo/files/ubuntu2004 |
| package task | |
| import ( | |
| "context" | |
| "encoding/json" | |
| "fmt" | |
| "github.com/gorilla/mux" | |
| "log" | |
| "net/http" | |
| "os/exec" |
| #cloud-config | |
| autoinstall: | |
| version: 1 | |
| early-commands: | |
| - systemctl stop ssh # otherwise packer tries to connect and exceed max attempts | |
| - hostnamectl set-hostname ubuntu-00 # update hostname even for the installer environment | |
| - dhclient # re-register the updated hostname | |
| network: |
| #!/bin/sh | |
| # DESCRIPTION: | |
| # this script will create a virtual machine on an ESXi 6+ hypervisor. | |
| # it will create a small vm to specification from the vmx template config. | |
| # it will create a small thin provisioned disk with 8G as OS drive. | |
| # it will mount an ISO image and have the cdrom ready for install. | |
| # | |
| # pre-reqs: this script needs to be in the root-path of the vmfs datastore where you want to deploy vms. | |
| # pre-reqs: this script needs to have the cwd changed to basedir of this script. |
| Every 1.0s: cat /proc/spl/kstat/zfs/arcstats | grep evictable | grep -E '^mru|^mfu' batfs0557: Mon Jul 26 10:57:53 2021 | |
| mru_evictable_data 4 0 | |
| mru_evictable_metadata 4 4096 | |
| mru_ghost_evictable_data 4 0 | |
| mru_ghost_evictable_metadata 4 0 | |
| mfu_evictable_data 4 0 | |
| mfu_evictable_metadata 4 0 | |
| mfu_ghost_evictable_data 4 0 | |
| mfu_ghost_evictable_metadata 4 0 |
| time read miss miss% dmis dm% pmis pm% mmis mm% arcsz c | |
| 08:45:22 13 0 0 0 0 0 0 0 0 64G 64G | |
| 08:45:23 1.8K 3 0 1 0 2 66 3 0 64G 64G | |
| 08:45:24 469K 2.0K 0 629 0 1.4K 11 2.0K 0 64G 64G | |
| 08:45:25 777K 3.9K 0 1.4K 0 2.5K 15 3.9K 0 64G 64G | |
| 08:45:26 819K 3.6K 0 1.4K 0 2.2K 15 3.6K 0 64G 64G | |
| 08:45:27 235K 1.2K 0 441 0 760 17 1.2K 0 64G 64G | |
| 08:45:28 253K 1.3K 0 529 0 736 24 1.3K 0 64G 64G | |
| 08:45:29 510K 2.6K 0 897 0 1.7K 17 2.6K 0 64G 64G | |
| 08:45:30 37K 118 0 59 0 59 25 118 0 64G 64G |
| root@batfs0557:~# cat super_cache_scan.bt | |
| #!/bin/env /usr/bin/bpftrace | |
| #include <linux/types.h> | |
| #include <asm-generic/atomic-long.h> | |
| #include <linux/shrinker.h> | |
| kprobe:super_cache_scan { | |
| $sc = (struct shrink_control *) arg1; | |
| @nr_to_scan[$sc->nid, comm, probe] = hist($sc->nr_to_scan); | |
| } |
| # | |
| # Description: Wait for 3 vusb interfaces to intialize and then refresh the ESXi host network settings. | |
| # Original reference: https://flings.vmware.com/usb-network-native-driver-for-esxi#instructions | |
| # | |
| # Get status of 3 vusb interfaces to be "Up Up Up", see the use of 3 in head -n3 and xargs -n3. | |
| vusb_status=$(esxcli network nic list | grep vusb | awk '{print $5}' | sort | head -n3 | xargs -n3) | |
| # Loop until all 3 vusb interfaces are Up | |
| # Waits a maximum of 20 * 10 seconds before falling through. |
| [root@vs-1:~] esxcli network nic list | |
| Name PCI Device Driver Admin Status Link Status Speed Duplex MAC Address MTU Description | |
| ------ ------------ ------ ------------ ----------- ----- ------ ----------------- ---- ------------------------------------------------ | |
| vmnic0 0000:00:1f.6 ne1000 Up Up 1000 Full 94:c6:91:a5:40:79 1500 Intel Corporation Ethernet Connection (6) I219-V | |
| vusb0 Pseudo uether Up Up 1000 Full 00:50:b6:1b:f2:79 1500 ASIX Elec. Corp. AX88179 | |
| vusb1 Pseudo uether Up Up 1000 Full 00:50:b6:ea:b8:42 1500 ASIX Elec. Corp. AX88179 | |
| vusb2 Pseudo uether Up Up 1000 Full 00:50:b6:1e:dc:72 1500 ASIX Elec. Corp. AX88179 | |
| [root@vs-1:~] esxcli network nic list | grep vusb | awk '{print $1"_mac="$8}' | |
| vusb0_mac=00:50:b6:1b:f2:79 |