Krishna Kumar kkumar-fk
kkumar-fk
/ VM_devices.txt
Created
November 29, 2021 13:40
List of devices in a VM with teaming and SR-IOV passthrough
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| 4: ens10: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000 | |
| link/ether 52:54:00:00:12:53 brd ff:ff:ff:ff:ff:ff | |
| inet 192.168.12.53/24 brd 192.168.12.255 scope global dynamic ens10 | |
| valid_lft 42482sec preferred_lft 42482sec | |
| inet6 fe80::97d8:db2:8c10:b6d6/64 scope link | |
| valid_lft forever preferred_lft forever | |
| 5: ens10nsby: <BROADCAST,MULTICAST> mtu 1500 qdisc fq_codel master ens10 state DOWN group default qlen 1000 | |
| link/ether 52:54:00:00:12:53 brd ff:ff:ff:ff:ff:ff | |
| 7: ens11: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master ens10 state UP group default qlen 1000 | |
| link/ether 52:54:00:00:12:53 brd ff:ff:ff:ff:ff:ff |
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| # cat vf.xml | |
| <interface type='hostdev' managed='yes'> | |
| <mac address='52:54:00:00:12:53'/> | |
| <source> | |
| <address type='pci' domain='0x0000' bus='0x42' slot='0x02' function='0x5'/> | |
| </source> | |
| <teaming type='transient' persistent='ua-backup0'/> | |
| </interface> |
kkumar-fk
/ migrate_source.sh
Created
November 29, 2021 13:42
Migration script to run on the source hypervisor
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| #!/bin/bash | |
| DOMAIN=vm-01 | |
| PF=ens6np0 | |
| VF=ens6v1 # VF attached to the bridge. | |
| VF_NUM=1 | |
| TAP_IF=vmtap01 # virtio-net interface in the VM. | |
| VF_XML=vf.xml | |
| MAC=52:54:00:00:12:53 |
kkumar-fk
/ reattach_vf.sh
Created
November 29, 2021 13:44
Script to run on destination hypervisor to reattach a VF to the migrated VM
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| #!/bin/bash | |
| bridge fdb del 52:54:00:00:12:53 dev ens36v0 | |
| bridge fdb del 52:54:00:00:12:53 dev vmtap01 master | |
| virsh attach-device --config --live vm01 vf.xml | |
| virsh domif-setlink vm01 vmtap01 down |
kkumar-fk
/ crypto_summary.sh
Last active
February 11, 2022 03:40
Script to calculate your crypto balance, as well as give (50) historical values. Historical values help in deciding whether to invest or not.
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| #!/bin/bash | |
| # Number of units of each cryptocurrency. | |
| u_bc=0.73674311 | |
| u_eth=0.75795629 | |
| u_rip=251.065810 | |
| # Get prices of each from https://api.coingecko.com/api/v3/coins/list | |
| bc=`curl "https://api.coingecko.com/api/v3/coins/markets?vs_currency=inr&ids=bitcoin" 2> /dev/null | jq . | grep current_price | awk '{print $NF}' | cut -d, -f1 &` | |
| eth=`curl "https://api.coingecko.com/api/v3/coins/markets?vs_currency=inr&ids=ethereum" 2> /dev/null | jq . | grep current_price | awk '{print $NF}' | cut -d, -f1 &` |
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