Error related by Juju logs on step "Sysctl reloaded" of the k8s_cluster_installation charm

[oEscal]

Note that the charm is completed with success and the cluster is also instantiated with success.

• Error:

unit-app-vnf-4de30cb667-z0-vdu-controller-cnt-z0-0: 16:06:13 INFO unit.app-vnf-4de30cb667-z0-vdu-controller-cnt-z0/0.juju-log Status: Sysctl reloaded; Output: * Applying /etc/sysctl.d/10-console-messages.conf ...                          
kernel.printk = 4 4 1 7                                                                                                                                                                                                                       
* Applying /etc/sysctl.d/10-ipv6-privacy.conf ...                                                                                                                                                                                             
net.ipv6.conf.all.use_tempaddr = 2                                                                                     
net.ipv6.conf.default.use_tempaddr = 2                                                                                 
* Applying /etc/sysctl.d/10-kernel-hardening.conf ...                                                                                                                                         
kernel.kptr_restrict = 1                                                                                                                                                                      
* Applying /etc/sysctl.d/10-link-restrictions.conf ...                                                                 
fs.protected_hardlinks = 1                                                                     
fs.protected_symlinks = 1                                                                      
* Applying /etc/sysctl.d/10-magic-sysrq.conf ...                                                                       
kernel.sysrq = 176                                                                                                     
* Applying /etc/sysctl.d/10-network-security.conf ...                                          
net.ipv4.conf.default.rp_filter = 2                                                                                                                                                           
net.ipv4.conf.all.rp_filter = 2                                                                
* Applying /etc/sysctl.d/10-ptrace.conf ...                                                                            
kernel.yama.ptrace_scope = 1                                                                                           
* Applying /etc/sysctl.d/10-zeropage.conf ...                                                  
vm.mmap_min_addr = 65536                                                                                               
* Applying /usr/lib/sysctl.d/50-default.conf ...                                               
net.ipv4.conf.default.promote_secondaries = 1
net.ipv4.ping_group_range = 0 2147483647                                                                               
net.core.default_qdisc = fq_codel                                                                                      
fs.protected_regular = 1                                                                                               
fs.protected_fifos = 1                                                                                                 
* Applying /usr/lib/sysctl.d/50-pid-max.conf ...                                                                       
kernel.pid_max = 4194304                                                                       
* Applying /etc/sysctl.d/99-cloudimg-ipv6.conf ...                                                                     
net.ipv6.conf.all.use_tempaddr = 0          
net.ipv6.conf.default.use_tempaddr = 0      
* Applying /etc/sysctl.d/99-sysctl.conf ...                                                                            
* Applying /etc/sysctl.d/kubernetes.conf ...                                                                           
net.bridge.bridge-nf-call-ip6tables = 1                                                        
net.ipv4.ip_forward = 1                                                                                                
* Applying /usr/lib/sysctl.d/protect-links.conf ...                                                                    
fs.protected_fifos = 1                                                                                                                                                                                                                        
fs.protected_hardlinks = 1                                                                                                                                                                                                                    
fs.protected_regular = 2                                                                                                                                                                                                                      
fs.protected_symlinks = 1                                                                                                                                                                                                                     
* Applying /etc/sysctl.conf ...; Errors: sysctl: setting key "net.ipv4.conf.all.promote_secondaries": Invalid argument                                                                                                                        
sysctl: /etc/sysctl.d/kubernetes.conf(2): invalid syntax, continuing...