============ From: test-alert@alert.alteeve.com To: Madison Kelly Subject: [ ScanCore ] - Test email Reply-To: This is a test alert. ============ DISABLE KSM! - https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/virtualization_tuning_and_optimization_guide/chap-ksm NEXT; - RHEL 8 package changes: chrony replaces ntp cockpit replaces virt-manager (deprecated) e1000e replaces e1000 driver tmux replaces screen iproute2 replaces bridge-utils (See "ip link" and man bridge.) ==] UEFI Setup [====================================================================== ignoredisk --only-use=vdb,vda clearpart --none --initlabel part raid.312 --fstype="mdmember" --ondisk=vda --size=19966 part raid.293 --fstype="mdmember" --ondisk=vdb --size=512 part raid.319 --fstype="mdmember" --ondisk=vdb --size=19966 part raid.286 --fstype="mdmember" --ondisk=vda --size=512 raid pv.326 --device=pv1 --fstype="lvmpv" --level=RAID1 raid.312 raid.319 raid /boot/efi --device=efi --fstype="efi" --level=RAID1 --fsoptions="umask=0077,shortname=winnt" --label=efi raid.286 raid.293 volgroup striker_vg0 --pesize=4096 pv.326 logvol swap --fstype="swap" --size=4096 --name=lv_swap --vgname=striker_vg0 logvol / --fstype="xfs" --size=15852 --label="lv_root" --name=lv_root --vgname=striker_vg0 ====================================================================================== DOCS; - - Explanation of 'comps.xml' (package grouping) - https://pagure.io/fedora-comps - Firewalld - https://www.digitalocean.com/community/tutorials/how-to-set-up-a-firewall-using-firewalld-on-centos-7 - PXE; - https://docs.fedoraproject.org/en-US/fedora/f28/install-guide/advanced/Network_based_Installations/ - https://docs.fedoraproject.org/en-US/Fedora/26/html/Installation_Guide/chap-pxe-server-setup.html - UEFI PXE notes - https://www.syslinux.org/wiki/index.php?title=PXELINUX#UEFI - How to write a NetworkManager dispatcher script to apply ethtool commands? - https://access.redhat.com/solutions/2841131 - Setup nodes to log to striker? - https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/networking_guide/sec-configuring_netconsole - Pacemaker can be monitored via SNMP - https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/high_availability_add-on_reference/s1-snmpandpacemaker-HAAR - corosync.conf - https://access.redhat.com/articles/3185291 ==== Network planning; 10.x.y.z / 255.255.0.0 10.x.y.z / 255.255.0.0 x = Network; - BCN = 200 + network ie: BCN1 = 10.201.y.z BCN2 = 10.202.y.z - SN = 100 + network ie: SN1 = 10.101.y.z SN2 = 10.102.y.z y = Device Type. Foudation Pack; 1. Switches 2. PDUs 3. UPSes 4. Strikers 5. Striker IPMI (BCN only) Anvil! systems; 1st - 10 = Node IP 11 = Node IPMI 2nd - 12 = Node IP 13 = Node IPMI 3rd - 14 = Node IP 15 = Node IPMI N... z = Device Sequence - Foundation pack devices are simple sequence - Anvils; .1 = node 1, .2 = node 2, .3 = dr ==== RHEL 8 Firewall - https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8-beta/html/configuring_and_managing_networking/assembly_using-firewalls_configuring-networking-with-gnome-gui ============================= Ports we care about Porto Number Used by Nets Description TCP 2224 pcsd bcn It is crucial to open port 2224 in such a way that pcs from any node can talk to all nodes in the cluster, including itself. UDP 5404 corosync bcn Required on corosync nodes if corosync is configured for multicast UDP UDP 5405 corosync bcn Required on all corosync nodes (needed by corosync) TCP 7788+ drbd sn 1 port per resource TCP 49152-49215 virsh bcn live migration - migration_port_min and migration_port_max attributes in the /etc/libvirt/qemu.conf NOTE: DHCP listens to raw sockets and ignores firewalld rules. We need to stop dhcpd directly - https://kb.isc.org/docs/aa-00378 * After all changes; firewall-cmd --zone=public --add-port=49152-49215/tcp --permanent firewall-cmd --reload - Paths If we want to create services or helpers later, look under - /usr/lib/firewalld/ Core firewalld configs, including defaults zones, etc - /etc/firewalld/ * Zones are meant to deal with dynamic environments and aren't that useful in mostly static server environments * Use 'firewall-cmd' WITHOUT '--permanent' for things like enabling the VNC port for a server. Use '--permanent' for everything else. ==== Striker as PXE server ==== # Bootloader for BIOS OS="fedora28" mkdir /var/lib/tftpboot/ cp $(anvil source)/pxe/tftpboot/bios/* /var/lib/tftpboot/ chmod 755 /var/lib/tftpboot/* # Bootloader for UEFI cp $(anvil source)/pxe/tftpboot/uefi/* /var/lib/tftpboot/uefi/ chmod 755 /var/lib/tftpboot/uefi/* # Copy kernel images for tftpboot downloads mkdir -p /var/lib/tftpboot/${OS} cp /lib/modules/$(uname -r)/vmlinuz /var/lib/tftpboot/${OS}/ mkinitrd /var/lib/tftpboot/${OS}/initrd.img $(uname -r) # Configs from anvil source rsync -av pxe/tftpboot/pxelinux.cfg/default root@f28-striker01:/var/lib/tftpboot/pxelinux.cfg/ rsync -av pxe/tftpboot/pxelinux/uefi root@f28-striker01:/var/lib/tftpboot/pxelinux/ ==== UEFI boot crash >>Start PXE over IPv4. Station IP address is 10.1.14.186 Server IP address is 10.1.4.1 NBP filename is uefi/shim.efi NBP filesize is 1210776 Bytes Downloading NBP file... NBP file downloaded successfully. Fetching Netboot Image !!!! X64 Exception Type - 0D(#GP - General Protection) CPU Apic ID - 00000000 !!!! ExceptionData - 0000000000000000 RIP - 000000007FF8E976, CS - 0000000000000038, RFLAGS - 0000000000210202 RAX - 0000000000000001, RCX - 0000000000000010, RDX - AFAFAFAFAFAFAFA7 RBX - 0000000000000020, RSP - 000000007FF7E6B0, RBP - 000000007ED11F18 RSI - AFAFAFAFAFAFAFAF, RDI - 000000007FFA1720 R8 - 0000000000000000, R9 - 0000000000000028, R10 - 0000000000000020 R11 - 0000000000000002, R12 - 000000007ECE3798, R13 - 000000007ECE3C18 R14 - 000000007FF7E788, R15 - 000000007ECE37D8 DS - 0000000000000030, ES - 0000000000000030, FS - 0000000000000030 GS - 0000000000000030, SS - 0000000000000030 CR0 - 0000000080010033, CR2 - 0000000000000000, CR3 - 000000007FC01000 CR4 - 0000000000000668, CR8 - 0000000000000000 DR0 - 0000000000000000, DR1 - 0000000000000000, DR2 - 0000000000000000 DR3 - 0000000000000000, DR6 - 00000000FFFF0FF0, DR7 - 0000000000000400 GDTR - 000000007FBEE698 0000000000000047, LDTR - 0000000000000000 IDTR - 000000007F5B5018 0000000000000FFF, TR - 0000000000000000 FXSAVE_STATE - 000000007FF7E310 !!!! Find image based on IP(0x7FF8E976) /builddir/build/BUILD/tianocore-edk2-cb5f4f45ce/Build/OvmfX64/DEBUG_GCC5/X64/MdeModulePkg/Core/Dxe/DxeMain/DEBUG/DxeCore.dll (ImageBase=000000007FF80000, EntryPoint=000000007FF98DB1) !!!! ==== DB stuff; Dump; su - postgres -c "pg_dump anvil" > /anvil.out Drop; su - postgres -c "dropdb anvil" && su - postgres -c "createdb --owner admin anvil" && su - postgres -c "psql anvil" Reload the DB; su - postgres -c "dropdb anvil" && su - postgres -c "createdb --owner admin anvil" && su - postgres -c "psql anvil < /anvil.out" su - postgres -c "psql anvil" Changes made using tools such as nmcli do not require a reload but do require the associated interface to be put down and then up again. That can be done by using commands in the following format: * nmcli dev disconnect interface-name Followed by: * nmcli con up interface-name NOTE: RHEL doesn't support direct-cabled bonds - https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/networking_guide/ch-configure_network_bonding ifcfg-X config Notes - /usr/share/doc/initscripts-*/sysconfig.txt (Look for the sections describing files /etc/sysconfig/network and /etc/sysconfig/network-scripts/ifcfg-); - man 5 nm-settings-ifcfg-rh - https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/networking_guide/sec-Using_Channel_Bonding#s3-modules-bonding-directives - /usr/share/doc/kernel-doc-*/Documentation/networking/bonding.txt iface * PREFIXx overrules NETMASKx. Use PREFIXx, not NETMASKx. * The 'x' suffice for PREFIX, NETMASK, etc start at 0 and must count up by 1 at a time. * ZONE will be useful for the firewall stuff later. * ETHTOOL_OPTS is deprecated, replaced by using udev rules * initscripts interpret PEERDNS=no to mean "never touch resolv.conf". NetworkManager interprets it to say "never add automatic (DHCP, PPP, VPN, etc.) nameservers to resolv.conf". Bond * resend_igmp & num_unsol_na={1~255} may help if a switch is slow to notice traffic has moved to the new interface. default is 1. Each update is send 200ms apart. * Bridged interfaces should use BRIDGE_UUID="", _not_ BRIDGE="". The former causes the later to be ignored and the later is only used for possible compatibility reasons. Bridge * STP=no is default, we'll test 'yes'. * DOMAIN="" # Network Setup hostnamectl set-hostname m3-a02n01.alteeve.com --static hostnamectl set-hostname --pretty "Alteeve's Niche! - Anvil! 02, Node 01" hostname m3-a02n01.alteeve.com ssh-keygen -t rsa -N "" -b 8191 -f ~/.ssh/id_rsa hosts: ==== 10.1.20.1 m3-a02n01.bcn m3-a02n01 m3-a02n01.alteeve.com 10.41.20.1 m3-a02n01.sn 10.255.20.1 m3-a02n01.ifn 10.1.20.2 m3-a02n02.bcn m3-a02n02 m3-a02n02.alteeve.com 10.41.20.2 m3-a02n02.sn 10.255.20.2 m3-a02n02.ifn 10.1.22.1 m3-a02dr01.bcn m3-a02dr01 m3-a02dr01.alteeve.com 10.41.22.1 m3-a02dr01.sn 10.255.22.1 m3-a02dr01.ifn ==== ======= virt-manager stores information in dconf-editor -> /org/virt-manager/virt-manager/connections ($HOME/.config/dconf/user) ==== dconf read /org/virt-manager/virt-manager/connections/uris ['qemu+ssh://root@localhost/system', 'qemu+ssh://root@wp-a01n02.remote/system', 'qemu+ssh://root@an-nas02.kw01.alteeve.ca/system', 'qemu+ssh://root@hb-a01n01.remote/system', 'qemu+ssh://root@hb-a01n02.remote/system', 'qemu:///system'] ==== dconf read /org/virt-manager/virt-manager/connections/autoconnect ['qemu+ssh://root@localhost/system'] ==== # Web - TODO: Setup to auto-use "Let's Encrypt", but make sure we have an offline fall-back # SELinux restorecon -rv /var/www ============================================================= * Network; ** {bc,if,s}nX_{link,bond,bridge}Y naming ** firewall; - https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/high_availability_add-on_reference/s1-firewalls-haar firewall-cmd --permanent --add-service=high-availability firewall-cmd --add-service=high-availability firewall-cmd --reload * Cluster Config; ==== Both nodes echo Initial1 | passwd hacluster --stdin systemctl start pcsd.service systemctl enable pcsd.service systemctl disable libvirtd.service systemctl stop libvirtd.service ==== One node pcs host auth el8-a01n01 el8-a01n02 -u hacluster -p "secret" ### VMs pcs cluster setup m3-anvil-01 el8-a01n01 el8-a01n02 pcs cluster start --all pcs stonith create virsh_node1 fence_virsh pcmk_host_list="el8-a01n01" ipaddr="192.168.122.1" passwd="secret" login="root" delay="15" port="el8-a01n01" op monitor interval="60" pcs stonith create virsh_node2 fence_virsh pcmk_host_list="el8-a01n02" ipaddr="192.168.122.1" passwd="secret" login="root" port="el8-a01n02" op monitor interval="60" ### Real iron. pcs stonith create ipmilan_node1 fence_ipmilan pcmk_host_list="mk-a02n01" ipaddr="10.201.13.1" password="another secret p" username="admin" delay="15" op monitor interval="60" pcs stonith level add 1 mk-a02n01 ipmilan_node1 pcs stonith create ipmilan_node2 fence_ipmilan pcmk_host_list="mk-a02n02" ipaddr="10.201.13.2" password="another secret p" username="admin" op monitor interval="60" pcs stonith level add 1 mk-a02n02 ipmilan_node2 pcs stonith create apc_snmp_node1_psu1 fence_apc_snmp pcmk_host_list="mk-a02n01" pcmk_off_action="reboot" ip="10.201.2.3" port="3" power_wait="5" op monitor interval="60" pcs stonith create apc_snmp_node1_psu2 fence_apc_snmp pcmk_host_list="mk-a02n01" pcmk_off_action="reboot" ip="10.201.2.4" port="3" power_wait="5" op monitor interval="60" pcs stonith level add 2 mk-a02n01 apc_snmp_node1_psu1,apc_snmp_node1_psu2 pcs stonith create apc_snmp_node2_psu1 fence_apc_snmp pcmk_host_list="mk-a02n02" pcmk_off_action="reboot" ip="10.201.2.3" port="4" power_wait="5" op monitor interval="60" pcs stonith create apc_snmp_node2_psu2 fence_apc_snmp pcmk_host_list="mk-a02n02" pcmk_off_action="reboot" ip="10.201.2.4" port="4" power_wait="5" op monitor interval="60" pcs stonith level add 2 mk-a02n02 apc_snmp_node2_psu1,apc_snmp_node2_psu2 pcs stonith create delay_node1 fence_delay pcmk_host_list="mk-a02n01" wait="60" op monitor interval="60" pcs stonith level add 3 mk-a02n01 delay_node1 pcs stonith create delay_node2 fence_delay pcmk_host_list="mk-a02n02" wait="60" op monitor interval="60" pcs stonith level add 3 mk-a02n02 delay_node2 # Either case pcs property set stonith-max-attempts=INFINITY pcs property set stonith-enabled=true # Create a new server resource, stopped, create the location constraint (higher == preferred), then start. pcs resource create srv07-el6 ocf:alteeve:server name="srv07-el6" meta allow-migrate="true" target-role="stopped" op monitor interval="60" on-fail="block" stop timeout="INFINITY" migrate_to timeout="INFINITY" pcs constraint location srv07-el6 prefers mk-a02n01=200 mk-a02n02=100 pcs resource enable srv07-el6 - or - pcs resource update srv07-el6 ocf:alteeve:server name="srv07-el6" meta allow-migrate="true" migrate_to="INFINITY" stop="INFINITY" op monitor interval="60" on-fail="block" # Test stonith_admin --fence el8-a01n02 --verbose; crm_error $? stonith-max-attempts=INFINITY cluster-recheck-interval puts an upper bound on the "i give up" time ==== DRBD notes * resources can contain an US-ASCII character, except for spaces * A resource is a single replication stream for 1 or more resources, max 65.535 vols per resource * DRBD does, however, ship with an LVM integration facility that automates the creation of LVM snapshots immediately before synchronization. This ensures that a consistent copy of the data is always available on the peer, even while synchronization is running. See Using automated LVM snapshots during DRBD synchronization for details on using this facility. ** https://docs.linbit.com/docs/users-guide-9.0/#s-lvm-snapshots * Checksum-based synchronization computes a block's hash on source and target and skips if matching, possibly making resync much faster for blocks rewritten with the same data, but at the cost of CPU. Make this a user-configurable option under the advanced tab. * Suspended replication allows congested replication links to suspend replication, leaving the peer in a consistent state, but allowing the primary to "pull ahead". When the congestion passes, the delta resyncs. Make this a user-configurable option with scary warnings. * Online verification can (should?) be run periodically on the server host (verification source will overwrite deltas on the verification target). Perhaps schedule to run once/month? Do resource sequentially as this places a CPU load on the nodes. * Replication traffic integrity checking uses a given available kernel crypto to verify data integrity on transmission to the peer. If the replicated block can not be verified against the digest, the connection is dropped and immediately re-established; because of the bitmap the typical result is a retransmission. ** Make an option in the advanced tab. Test to see overhead this adds. Choose the lowest overhead algo (within reason) * Support for disk flushes might be something we want to disable, as it seems to force write-through even with a function FBWC/BBU. Need to test. * Note; "Inconsistent" is almost always useless. "Consistent" and "Outdated" are able to be used safely, just without whatever happened on the peer after. * Truck based replication, also known as disk shipping, is a means of preseeding a remote site with data to be replicated, by physically shipping storage media to the remote site. * Make sure that selinux doesn't block DRBD comms over the SN * See "5.15.1. Growing on-line" for growing a DRBD resource ** Shrinking online is ONLY possible if the metadata is external. Worth creating *_md LVs? Offline requires backing up and restoring the MD Provisioning a server will need to: * Create the LVs * Open up the DRBD ports * Create the DRBD resource(s); Find the lowest free rX.res, create it locally and on the peer (if up), firewall-cmd --zone=public --permanent --add-port=7788-7790/tcp firewall-cmd --reload * Provision the server via virt-install * push the new XML to striker such that the peer's anvil daemon picks it up and writes it out. [root@el8-a01n01 drbd.d]# drbdsetup status r0 --verbose --statistics r0 node-id:1 role:Primary suspended:no write-ordering:flush volume:0 minor:0 disk:UpToDate quorum:yes size:10485404 read:9682852 written:0 al-writes:0 bm-writes:0 upper-pending:0 lower-pending:0 al-suspended:no blocked:no el8-a01n02.alteeve.com node-id:0 connection:Connected role:Secondary congested:no volume:0 replication:SyncSource peer-disk:Inconsistent done:92.29 resync-suspended:no received:0 sent:9679140 out-of-sync:808144 pending:6 unacked:3 [root@el8-a01n02 ~]# cat /sys/kernel/debug/drbd/resources/r0/connections/el8-a01n01.alteeve.com/0/proc_drbd 0: cs:SyncSource ro:Primary/Secondary ds:UpToDate/Inconsistent C r----- ns:24360 nr:10485404 dw:10485404 dr:25420 al:0 bm:0 lo:0 pe:[0;0] ua:0 ap:[0;0] ep:1 wo:2 oos:10461044 [>....................] sync'ed: 0.3% (10212/10236)M finish: 0:50:01 speed: 3,480 (5,020 -- 3,480) K/sec 99% sector pos: 20970808/20970808 resync: used:0/61 hits:557 misses:2 starving:0 locked:0 changed:1 act_log: used:0/1237 hits:0 misses:0 starving:0 locked:0 changed:0 blocked on activity log: 0 [root@el8-a01n02 ~]# drbdadm primary r0 r0: State change failed: (-1) Multiple primaries not allowed by config Command 'drbdsetup primary r0' terminated with exit code 11 [root@el8-a01n02 ~]# drbdadm net-options --allow-two-primaries=yes r0 [root@el8-a01n02 ~]# drbdadm net-options --allow-two-primaries=no r0 drbdsetup show all drbdsetup show all --show-defaults == virt-install stuff * Get a list of --os-variants: 'osinfo-query os' * virt-install --print-xml (or --transient) * Migate; # For all resources under the server; #drbdadm net-options r0 --allow-two-primaries=yes drbdsetup net-options srv01-c7_0 2 --_name=m3-a02n01.alteeve.com --csums-alg=md5 --data-integrity-alg=md5 --after-sb-0pri=discard-zero-changes --after-sb-1pri=discard-secondary --after-sb-2pri=disconnect --protocol=C --fencing=resource-and-stonith --allow-two-primaries=yes drbdsetup net-options srv01-c7_0 2 --_name=m3-a02n01.alteeve.com --csums-alg=md5 --data-integrity-alg=md5 --after-sb-0pri=discard-zero-changes --after-sb-1pri=discard-secondary --after-sb-2pri=disconnect --protocol=C --fencing=resource-and-stonith --allow-two-primaries=yes # Migrate: virsh -c qemu+ssh://root@m3-a02n02.alteeve.com/system list virsh migrate --unsafe --undefinesource --live srv01-c7 qemu+ssh://m3-a02n01.alteeve.com/system virsh -c qemu+ssh://root@m3-a02n02.alteeve.com/system migrate --undefinesource --live srv01-c7 qemu+ssh://m3-a02n01.alteeve.com/system # Again for all resource under the server; drbdadm net-options r0 --allow-two-primaries=no drbdsetup net-options --_name= --allow-two-primaries=yes virsh migrate --undefinesource --live qemu+ssh:///system drbdsetup net-options --_name= --allow-two-primaries=no pcs constraint list --full Location Constraints: Resource: srv01-c7 Enabled on: m3-a02n02.alteeve.com (score:50) (id:location-srv01-c7-m3-a02n02.alteeve.com-50) pcs constraint remove location-srv01-c7-m3-a02n02.alteeve.com-50 Set to 90% of BCN bandwidth migrate-setspeed domain bandwidth Set the maximum migration bandwidth (in MiB/s) for a domain which is being migrated to another host. bandwidth is interpreted as an unsigned long long value. Specifying a negative value results in an essentially unlimited value being provided to the hypervisor. The hypervisor can choose whether to reject the value or convert it to the maximum value allowed. migrate-getspeed domain Get the maximum migration bandwidth (in MiB/s) for a domain. # Provision servers mkdir /mnt/anvil/{provision,files,archive,definitions} == Resource Agent; https://github.com/ClusterLabs/resource-agents/blob/master/doc/dev-guides/ra-dev-guide.asc * A resource agent receives all configuration information about the resource it manages via environment variables. The names of these environment variables are always the name of the resource parameter, prefixed with OCF_RESKEY_. For example, if the resource has an ip parameter set to 192.168.1.1, then the resource agent will have access to an environment variable OCF_RESKEY_ip holding that value. === When stopping a server; 14:03 < lge> "on-fail: block" 14:03 < lge> is per operation type. 14:08 < lge> anyways, you can also "on-fail: retry" OK, set the stop timeout to 60, set 'on-fail: block" and set the failure-timeout to 60 and see how pacemaker reacts. failure-timeout === Migrate servers; - Let ScanCore set 'node-health' attribute (http://clusterlabs.org/pacemaker/doc/en-US/Pacemaker/1.1/html-single/Pacemaker_Explained/index.html#s-node-health) - Set 'migration-limit' to '1' to enforce serial live migration (http://clusterlabs.org/pacemaker/doc/en-US/Pacemaker/1.1/html-single/Pacemaker_Explained/index.html#s-cluster-options). Migrate a single server by setting a location constraint against the node we want the VM off of. - If anything goes wrong, the server will enter a blocked state in pacemaker. - Recovery needs to be 'unmanage -> clean' to avoid a stop call. 11:57 <@kgaillot> for your design, that sounds right. between cleanup and manage, i'd make sure there was a PE run without any pending actions blocked by the unmanaging -- you can either look at the logs on the DC, run "crm_simulate -SL", or just check the status for a bit 11:58 <@kgaillot> you can play around with it by putting a higher preference on the to-be-cleaned node, to make sure it *does* move when you re-manage. that way you can see what logs/simulate/status look like 12:07 <@kgaillot> i'm thinking if you do crm_resource --reprobe instead of cleanup in the above sequence, that should prevent anything unexpected 12:07 <@kgaillot> unmanage -> adjust preferences if needed -> reprobe resource -> wait for probe results to come back in, and if status looks good -> re-manage 12:08 <@kgaillot> the reprobe will wipe the entire resource history and fail counts for the resource, causing pacemaker to recheck the current status on all nodes. if the status then shows the resource running where you expect/want it, with no errors, then it's not going to do anything further 12:09 <@kgaillot> (in 2.0, cleanup only erases the history where the resource has failed, while reprobe erases the history regardless) 12:13 <@kgaillot> if there are no failures in the resource history, there should be no risk of a full stop. if there is no resource history at all, then after reprobe, there should be no risk of any actions (assuming you've set up location preferences and stickiness how you want them) Recover from a failed migration; reset location to prefer current host -> unmanage resource -> cleanup resource -> manage resource (running on node 2, so re-add location constraint - basically, make sure location constraint favours current host) https://pykickstart.readthedocs.io/en/latest/kickstart-docs.html#chapter-1-introduction ==== Sample kickstart for Fedora28 netinstall #version=DEVEL ignoredisk --only-use=vda # Partition clearing information clearpart --none --initlabel # Use graphical install graphical # Use network installation url --url="http://10.1.4.1/rhel8/x86_64/iso/" # Keyboard layouts keyboard --vckeymap=us --xlayouts='us' # System language lang en_CA.UTF-8 # Network information network --bootproto=dhcp --device=ens3 --ipv6=auto --activate network --hostname=localhost.localdomain # Root password rootpw --iscrypted $6$fyAht.3wBVlRGgqG$5dqIv2NrBD87uA51fxuoic/t2G93pXPUjVlh27Avg20ZGY409SK8cMVgABswF.krJSVIyoHfIChXNfpP/qTjI1 # Run the Setup Agent on first boot firstboot --enable # Do not configure the X Window System skipx # System services services --enabled="chronyd" # System timezone timezone Etc/GMT --isUtc # System bootloader configuration bootloader --location=mbr --boot-drive=vda %packages @^server-product-environment %end %addon com_redhat_kdump --disable --reserve-mb='128' %end %anaconda pwpolicy root --minlen=6 --minquality=1 --notstrict --nochanges --notempty pwpolicy user --minlen=6 --minquality=1 --notstrict --nochanges --emptyok pwpolicy luks --minlen=6 --minquality=1 --notstrict --nochanges --notempty %end ==== ==== M3 Striker Kickstart # Setion 1 # Command section – Refer to Chapter 2 for a list of kickstart options. You must include the required options. ### NOTE: The %packages, %pre, %pre-install, %post, %onerror, and %traceback sections are all required to be closed with %end # Section 2 # The %packages section – Refer to Chapter 3 for details. # Section 3: # The %pre, %pre-install, %post, %onerror, and %traceback sections – These sections can be in any order and are not required. Refer to Chapter 4, Chapter 5, and Chapter 6 for details. ==== 0 root@pulsar:/var/lib/libvirt/images# dev_PATH=$(udevadm info /dev/sdb | grep -e ID_PATH=) 0 root@pulsar:/var/lib/libvirt/images# if [[ $dev_PATH == *"usb"* ]]; then echo "USB drive"; elif [[ $dev_PATH == *"nvme"* ]]; then echo "NVMe drive"; elif [[ $dev_PATH == *"ata"* ]]; then echo "SATA drive"; elif [[ $dev_PATH == *"scsi"* ]]; then echo "SCSI drive"; fi USB drive 0 root@pulsar:/var/lib/libvirt/images# dev_PATH=$(udevadm info /dev/sda | grep -e ID_PATH=) 0 root@pulsar:/var/lib/libvirt/images# if [[ $dev_PATH == *"usb"* ]]; then echo "USB drive"; elif [[ $dev_PATH == *"nvme"* ]]; then echo "NVMe drive"; elif [[ $dev_PATH == *"ata"* ]]; then echo "SATA drive"; elif [[ $dev_PATH == *"scsi"* ]]; then echo "SCSI drive"; fi SATA drive 0 root@pulsar:/var/lib/libvirt/images# dev_PATH=$(udevadm info /dev/nvme0n1 | grep -e ID_PATH=) 0 root@pulsar:/var/lib/libvirt/images# if [[ $dev_PATH == *"usb"* ]]; then echo "USB drive"; elif [[ $dev_PATH == *"nvme"* ]]; then echo "NVMe drive"; elif [[ $dev_PATH == *"ata"* ]]; then echo "SATA drive"; elif [[ $dev_PATH == *"scsi"* ]]; then echo "SCSI drive"; fi NVMe drive [root@localhost ~]# dev_PATH=$(udevadm info /dev/sda | grep -e ID_PATH=) [root@localhost ~]# if [[ $dev_PATH == *"usb"* ]]; then echo "USB drive"; elif [[ $dev_PATH == *"nvme"* ]]; then echo "NVMe drive"; elif [[ $dev_PATH == *"ata"* ]]; then echo "SATA drive"; elif [[ $dev_PATH == *"scsi"* ]]; then echo "SCSI drive"; fi SCSI drive 0 root@pulsar:/var/lib/libvirt/images# cat /sys/class/block/sdb/device/model Flash Disk 0 root@pulsar:/var/lib/libvirt/images# cat /sys/class/block/sda/device/model SanDisk SDSSDXPS 0 root@pulsar:/var/lib/libvirt/images# cat /sys/class/block/nvme0n1/device/model INTEL SSDPEKKW512G7 ### Stuff only NVMe has 1 root@pulsar:/var/lib/libvirt/images# cat /sys/class/block/nvme0n1/device/subsysnqn nqn.2014.08.org.nvmexpress:80868086BTPY63650FPG512F INTEL SSDPEKKW512G7 0 root@pulsar:/var/lib/libvirt/images# cat /sys/class/block/sda/device/subsysnqn cat: /sys/class/block/sda/device/subsysnqn: No such file or directory 1 root@pulsar:/var/lib/libvirt/images# cat /sys/class/block/sdb/device/subsysnqn cat: /sys/class/block/sdb/device/subsysnqn: No such file or directory 0 root@pulsar:/var/lib/libvirt/images# cat /sys/class/block/nvme0n1/device/serial BTPY63650FPG512F 0 root@pulsar:/var/lib/libvirt/images# cat /sys/class/block/sda/device/serial cat: /sys/class/block/sda/device/serial: No such file or directory 1 root@pulsar:/var/lib/libvirt/images# cat /sys/class/block/sdb/device/serial cat: /sys/class/block/sdb/device/serial: No such file or directory 1 root@pulsar:/var/lib/libvirt/images# cat /sys/class/block/nvme0n1/device/transport pcie 0 root@pulsar:/var/lib/libvirt/images# cat /sys/class/block/sda/device/transport cat: /sys/class/block/sda/device/transport: No such file or directory 1 root@pulsar:/var/lib/libvirt/images# cat /sys/class/block/sdb/device/transport cat: /sys/class/block/sdb/device/transport: No such file or directory Disk size: /sys/class/block/sda/size * ===== man pages 1 Executable programs or shell commands 5 File formats and conventions eg /etc/passwd 7 Miscellaneous (including macro packages and conventions), e.g. man(7), groff(7) 8 System administration commands (usually only for root) A manual page consists of several sections. Conventional section names include NAME, SYNOPSIS, CONFIGURATION, DESCRIPTION, OPTIONS, EXIT STATUS, RETURN VALUE, ERRORS, ENVIRONMENT, FILES, VERSIONS, CONFORMING TO, NOTES, BUGS, EXAMPLE, AUTHORS, and SEE ALSO. The following conventions apply to the SYNOPSIS section and can be used as a guide in other sections. bold text type exactly as shown. italic text replace with appropriate argument. [-abc] any or all arguments within [ ] are optional. -a|-b options delimited by | cannot be used together. argument ... argument is repeatable. [expression] ... entire expression within [ ] is repeatable. ==== BEGIN TRANSACTION; DROP FUNCTION history_alerts() CASCADE; DROP TABLE history.alerts; DROP TABLE alerts; CREATE TABLE alerts ( alert_uuid uuid not null primary key, alert_host_uuid uuid not null, -- The name of the node or dashboard that this alert came from. alert_set_by text not null, alert_level integer not null, -- 1 (critical), 2 (warning), 3 (notice) or 4 (info) alert_title text not null, -- ScanCore will read in the agents .xml words file and look for this message key alert_message text not null, -- ScanCore will read in the agents .xml words file and look for this message key alert_sort_position integer not null default 9999, -- The alerts will sort on this column. It allows for an optional sorting of the messages in the alert. alert_show_header integer not null default 1, -- This can be set to have the alert be printed with only the contents of the string, no headers. modified_date timestamp with time zone not null, FOREIGN KEY(alert_host_uuid) REFERENCES hosts(host_uuid) ); ALTER TABLE alerts OWNER TO admin; CREATE TABLE history.alerts ( history_id bigserial, alert_uuid uuid, alert_host_uuid uuid, alert_set_by text, alert_level integer, alert_title text, alert_message text, alert_sort_position integer, alert_show_header integer, modified_date timestamp with time zone not null ); ALTER TABLE history.alerts OWNER TO admin; CREATE FUNCTION history_alerts() RETURNS trigger AS $$ DECLARE history_alerts RECORD; BEGIN SELECT INTO history_alerts * FROM alerts WHERE alert_uuid = new.alert_uuid; INSERT INTO history.alerts (alert_uuid, alert_host_uuid, alert_set_by, alert_level, alert_title, alert_title_variables, alert_message, alert_message_variables, alert_sort_position, alert_show_header, modified_date) VALUES (history_alerts.alert_uuid, history_alerts.alert_host_uuid, history_alerts.alert_set_by, history_alerts.alert_level, history_alerts.alert_title, history_alerts.alert_message, history_alerts.alert_sort_position, history_alerts.alert_show_header, history_alerts.modified_date); RETURN NULL; END; $$ LANGUAGE plpgsql; ALTER FUNCTION history_alerts() OWNER TO admin; CREATE TRIGGER trigger_alerts AFTER INSERT OR UPDATE ON alerts FOR EACH ROW EXECUTE PROCEDURE history_alerts(); COMMIT; ==== 3rd party stuff; dnf install autoconf automake bzip2-devel corosynclib-devel gnutls-devel help2man libqb-devel libtool \ libtool-ltdl-devel libuuid-devel libxml2-devel libxslt-devel pam-devel "pkgconfig(dbus-1)" \ "pkgconfig(glib-2.0)" python3-devel asciidoc inkscape publican booth-site diffstat \ fence-agents-apc fence-agents-ipmilan fence-agents-scsi fence-virt python3-lxml ruby-devel \ rubygem-backports rubygem-ethon rubygem-ffi rubygem-multi_json rubygem-open4 rubygem-rack \ rubygem-rack-protection rubygem-rack-test rubygem-sinatra rubygem-test-unit flex perl-generators ---- pacemaker; git tag git checkout <2.x> make srpm mv /home/digimer/anvil/builds/pacemaker/pacemaker-2.0.0-0.1.rc2.fedora.src.rpm ~/rpmbuild/SRPMS/ ---- pcs; - Requires pacemaker 2.x install git tag git checkout <0.10.x> ==== Building 3rd party tools dnf -y install bzip2-devel corosynclib-devel docbook-style-xsl gnutls-devel help2man libqb-devel libtool libtool-ltdl-devel libuuid-devel libxml2-devel libxslt-devel ncurses-devel pam-devel ========== Build Dependency chain; perl-Log-Log4perl perl-Log-Dispatch-FileRotate perl-MIME-Lite =========================================================================================================== RPM build order --- Install from RHEL repos; - Groups; dnf group install development rpm-development-tools - Uninstall dnf remove biosdevname - Packages dnf -y install bash-completion bind-utils dnf-utils firefox gdm libgcrypt-devel libutempter-devel libvirt-bash-completion ncurses-devel openssl-devel pam-devel perl-Capture-Tiny perl-Devel-CheckLib perl-Digest-SHA1 perl-ExtUtils-CBuilder perl-ExtUtils-MakeMaker perl-HTML-Parser \ perl-IO-stringy perl-MailTools perl-Module-Build perl-Module-Install perl-Module-Install-ReadmeFromPod perl-Net-DNS perl-Test-Exception perl-Test-Simple perl-Test-Pod perl-Test-Pod-Coverage \ perl-Test2-Suite rpm-build systemd-devel texinfo virt-manager wget \ perl-Params-ValidationCompiler perl-Dist-CheckConflicts perl-namespace-autoclean perl-Test-Fatal perl-Devel-GlobalDestruction perl-IPC-Run3 perl-Specio perl-Sys-Syslog postfix perl-DBI perl-IPC-SysV perl-Test perl-Filter rrdtool-perl perl-Test-Warn perl-Date-Manip \ perl-MIME-Types python36 docbook-style-xsl libxslt flex kernel-devel perl-IPC-System-Simple xdg-user-dirs perl-Import-Into perl-Class-XSAccessor perl-Sub-Name perl-DynaLoader-Functions perl-Devel-CallChecker perl-Test-Requires \ apr-devel apr-util-devel gdbm-devel httpd-devel perl-CGI perl-libwww-perl perl-Path-Tiny perl-ExtUtils-Embed perl-XML-DOM perl-Test-Taint perl-Readonly perl-Devel-Peek perl-String-ShellQuote elfutils-libelf-devel po4a --- First round of builds; alteeve-el8-repo anvil anvil-striker-extra htop libssh2 perl-Algorithm-C3 perl-B-Compiling perl-BSD-Resource perl-Devel-ArgNames perl-Devel-Refcount perl-Email-Date-Format perl-Exporter-Lite perl-ExtUtils-Config perl-ExtUtils-Depends perl-ExtUtils-Helpers perl-Eval-WithLexicals perl-Fennec-Lite perl-HTML-Strip perl-File-BaseDir perl-File-MimeInfo perl-IO-CaptureOutput perl-Lexical-SealRequireHints perl-Linux-Pid perl-Log-Journald perl-Net-Domain-TLD perl-Mail-Sender perl-Mail-Sendmail perl-Module-Install-GithubMeta perl-Net-Domain-TLD perl-Net-OpenSSH # Requires the builder enter their password perl-Proc-Simple perl-Sub-Quote perl-Test-Identity perl-Test-Needs perl-Test-UseAllModules perl-UUID-Tiny --- Second round of builds; # RHEL 8 blocks the install of libssh2-devel via dnf, so rpm to instal it rpm -Uvh /var/www/html/repo/RPMS/x86_64/libssh2-1.8.0-8.el8.x86_64.rpm /var/www/html/repo/RPMS/x86_64/libssh2-devel-1.8.0-8.el8.x86_64.rpm dnf -y install perl-IO-CaptureOutput perl-Exporter-Lite perl-Module-Install-GithubMeta perl-Net-Domain-TLD perl-Test-UseAllModules perl-Mail-Sender perl-Mail-Sendmail perl-Test-Needs perl-Email-Date-Format perl-ExtUtils-Depends perl-B-Compiling perl-Lexical-SealRequireHints \ perl-Sub-Quote perl-BSD-Resource perl-Linux-Pid perl-Algorithm-C3 perl-Fennec-Lite perl-Devel-ArgNames perl-Devel-Refcount perl-ExtUtils-Config perl-ExtUtils-Helpers perl-Test-Identity perl-Eval-WithLexicals mod_perl # NOTE: When --sign'ing it, it throws an error. Build without '--sign' and then do 'rpm --addsign ' perl-B-Hooks-OP-Check perl-Class-C3 perl-Data-Dumper-Concise perl-Email-Valid perl-ExtUtils-InstallPaths perl-Lexical-Var perl-Meta-Builder perl-MIME-Lite perl-Module-Install-AutoLicense perl-Net-Netmask perl-Test-Refcount --- Third round of builds; dnf -y install perl-Email-Valid perl-Module-Install-AutoLicense perl-MIME-Lite perl-B-Hooks-OP-Check perl-Lexical-Var mod_perl perl-Class-C3 perl-Data-Dumper-Concise perl-ExtUtils-InstallPaths perl-Meta-Builder perl-Test-Refcount perl-bareword-filehandles perl-Email-Find perl-Future perl-Log-Dispatch perl-Module-Build-Tiny perl-Module-Install-CheckLib perl-multidimensional ### NOTE: These two need to be built using bootstrap, and will be rebuilt later. perl-Devel-Declare # NOTE: rpmbuild -ba --define='perl_bootstrap=1' perl-Devel-Declare.spec, build perl-Devel-CallParser, rebuild this without bootstrap. perl-indirect # NOTE: rpmbuild -ba --define='perl_bootstrap=1' perl-indirect.spec, build perl-Devel-CallParser, rebuild this without bootstrap. --- Fourth round of builds; dnf -y install perl-Email-Find perl-Module-Install-CheckLib perl-Log-Dispatch perl-Devel-Declare perl-bareword-filehandles perl-multidimensional perl-indirect perl-Future perl-Module-Build-Tiny perl-aliased perl-Devel-CallParser perl-HTML-FromText perl-Log-Dispatch-FileRotate perl-Net-SSH2 perl-strictures --- Fifth round of builds; dnf -y install perl-Log-Dispatch perl-strictures perl-Devel-CallParser perl-Log-Dispatch-FileRotate perl-aliased perl-Exporter-Declare perl-Log-Log4perl perl-Moo ### NOTE: We're rebuilding these two, this time without bootstrap perl-Devel-Declare perl-indirect --- Sixth round of builds; ### NOTE: expire-cache isn't enough to clear the boot-strapped versions dnf clean all dnf reinstall perl-Devel-Declare perl-indirect dnf -y install perl-Moo perl-Log-Log4perl perl-Exporter-Declare perl-CPAN-Changes perl-Log-Contextual --- Seventh round of builds; dnf -y install perl-CPAN-Changes perl-Log-Contextual perl-File-DesktopEntry perl-Object-Remote --- Seventh round, final installs. dnf -y install perl-File-DesktopEntry perl-Object-Remote perl-Net-OpenSSH ======================================= cd SOURCES; tar -xzvf $tarball (or xjvf, whatever); tar -xzv -C package-digimer -f $tarball; patch in *-digimer; diff -uNr $package $package-digimer > ../SOURCES/whatever.patch 00:24 < Bahhumbug> Burst the source tarball; do it again but stash this copy in a *-digimer directory. Do patching in the -digimer directory and when finished great a recursive unified diff and place the results directly in the named .patch file. cd ~/rpmbuild/SOURCES tar -xzvf htop-2.2.0.tar.gz mv htop-2.2.0 htop-2.2.0-digimer cd htop-2.2.0-digimer # patch diff -uNr htop-2.2.0 htop-2.2.0-digimer > whatever.patch # Fabio's way diff -Naurd htop-2.2.0 htop-2.2.0-digimer > htop_python3_MakeHeader.patch ======================================= chrissie's cluster script # Run these commands on all nodes: cp ../ifup-local /sbin /sbin/ifup-local pcs host auth -uhacluster -phacluster amy.chrissie.net anna.chrissie.net clara.chrissie.net fanny.chrissie.net if [ "$(hostname)" != "amy.chrissie.net" -a "$(hostname)" != "amy" ] then exit fi # and these on just one: pcs cluster setup taroxVMs amy.chrissie.net anna.chrissie.net clara.chrissie.net fanny.chrissie.net pcs cluster start --all sleep 30 pcs stonith create fence-virsh fence_virsh ipaddr=192.168.100.1 login=root passwd=christine pcmk_host_map="amy:rhel8-1;anna:rhel8-2;clara:rhel8-3;fanny:rhel8-4" if [ ! -e '/dev/an-a01n01_vg0/srv09-psql_0' ]; then /sbin/lvcreate -L 69GiB -n srv09-psql_0 an-a01n01_vg0 fi virt-install --connect qemu:///system \ --name srv09-psql \ --ram 4096 \ --arch x86_64 \ --vcpus 2 \ --cpu Nehalem,+fsgsbase \ --cdrom '/shared/files/Win2016_Server_64-bit_English.iso' \ --boot menu=on \ --disk path='/shared/files/virtio-win.iso',device=cdrom --force\ --os-variant win2k8 \ --network bridge=ifn_bridge1,model=virtio \ --disk path=/dev/an-a01n01_vg0/srv09-psql_0,bus=virtio,cache=writethrough \ --graphics spice \ --noautoconsole --wait -1 > /var/log/anvil-server_srv09-psql.log & # Migration; pcs constraint remove $(pcs constraint show --full | grep ban-srv07-el6 | perl -pe 's/^.*?id:(.*?)\)/$1/') DRBD 9 - Check; /sys/kernel/debug/drbd/resources/${resource_name}/connections/${hostname}/0/proc_drbd ====== New style
====== Old manifest style # Attach a network interface: virsh attach-interface win2019_test bridge ifn_bridge1 --live --model virtio # Detach a network interface: virsh detach-interface win2019_test bridge --mac 52:54:00:ee:b5:1d # Change the MTU of a device; ip link set mtu 9000 # Change the MTU of an interface in windows (not tested yet - http://networking.nitecruzr.net/2007/11/setting-mtu-in-windows-vista.html) netsh interface ipv4 set subinterface "Local Area Connection" mtu=nnnn store=persistent yum install kernel-2.6.32-754.27.1.el6.x86_64 kernel-devel-2.6.32-754.27.1.el6.x86_64 kernel-headers-2.6.32-754.27.1.el6.x86_64