chakra j

``` 20GB - / (root) 10GB - /usr (system binaries) 10GB - /var (system drivers and other bits) 20GB - /var/lib/etcd (on masters, etcd write path, should be a fast...

Error creating deployer pod: Internal error occurred: failed calling admission webhook "sidecar-injector.istio.io": Post https://istio-sidecar-injector.istio-system.svc:443/inject?timeout=30s: dial tcp 172.30.44.20:443: connect: connection refused ``` oc delete MutatingWebhookConfiguration istio-sidecar-injector ```

`vi /etc/dnsmasq.d/origin-upstream-dns.conf` add customer nameserver details like this `server=213.186.33.99` `systemctl restart dnsmasq`

check if there are more than one plugin ref in /etc/cni/net.d/ ```sh $ rm /etc/cni/net.d/* -rf $ systemctl restart atomic-openshift-node ```

CIS benchmarks

3

TODO

https://docs.openshift.com/container-platform/3.9/scaling_performance/optimizing_storage.html#choosing-a-graph-driver

``` could not start DNS, unable to read config file: open /etc/origin/node/resolv.conf: no such file or directory ``` https://access.redhat.com/solutions/3165971 Reason: ```sh cat /etc/sysconfig/network-scripts/ifcfg-eth0 NM_CONTROLLED=no or PEERDNS=no #this is the reason...

Backup . ` /etc/etcd/ca` and `/etc/etcd/generated_certs` first etcd host in your inventory and then use `/usr/share/ansible/openshift-ansible/playbooks/byo/openshift-etcd/scaleup.yml.`

> openshift_master_cluster_public_hostname and openshift_master_cluster_hostname should always be set to different values. > openshift_master_cluster_public_hostname = the FQDN you use on your F5 VIP, that users will use to log in to...

$subject rhel7.4 ? https://bugzilla.redhat.com/show_bug.cgi?id=1550582