Description of problem:
SELinux is preventing NetworkManager from 'unlink' accesses on the file resolv.conf.

*****  Plugin catchall_labels (83.8 confidence) suggests   *******************

If you want to allow NetworkManager to have unlink access on the resolv.conf file
Then you need to change the label on resolv.conf
Do
# semanage fcontext -a -t FILE_TYPE 'resolv.conf'
where FILE_TYPE is one of the following: NetworkManager_etc_rw_t, NetworkManager_tmp_t, NetworkManager_var_lib_t, NetworkManager_var_run_t, dhcpc_state_t, dhcpc_var_run_t, dnsmasq_var_run_t, hostname_etc_t, named_cache_t, net_conf_t, pppd_var_run_t, ssh_home_t, systemd_passwd_var_run_t.
Then execute:
restorecon -v 'resolv.conf'


*****  Plugin catchall (17.1 confidence) suggests   **************************

If you believe that NetworkManager should be allowed unlink access on the resolv.conf file by default.
Then you should report this as a bug.
You can generate a local policy module to allow this access.
Do
allow this access for now by executing:
# ausearch -c 'NetworkManager' --raw | audit2allow -M my-NetworkManager
# semodule -X 300 -i my-NetworkManager.pp

Additional Information:
Source Context                system_u:system_r:NetworkManager_t:s0
Target Context                system_u:object_r:etc_t:s0
Target Objects                resolv.conf [ file ]
Source                        NetworkManager
Source Path                   NetworkManager
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           
SELinux Policy RPM            selinux-policy-targeted-3.14.6-34.fc33.noarch
Local Policy RPM              selinux-policy-targeted-3.14.6-34.fc33.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 5.10.16-200.fc33.x86_64 #1 SMP Sun
                              Feb 14 03:02:32 UTC 2021 x86_64 x86_64
Alert Count                   2
First Seen                    2021-02-22 11:15:13 AST
Last Seen                     2021-02-25 07:11:38 AST
Local ID                      bd3b5413-bea0-4ea0-817a-21053e8cdf6d

Raw Audit Messages
type=AVC msg=audit(1614251498.197:1195): avc:  denied  { unlink } for  pid=877 comm="NetworkManager" name="resolv.conf" dev="sda2" ino=631566 scontext=system_u:system_r:NetworkManager_t:s0 tcontext=system_u:object_r:etc_t:s0 tclass=file permissive=0


Hash: NetworkManager,NetworkManager_t,etc_t,file,unlink

Version-Release number of selected component:
selinux-policy-targeted-3.14.6-34.fc33.noarch

Additional info:
component:      selinux-policy
reporter:       libreport-2.14.0
hashmarkername: setroubleshoot
kernel:         5.10.17-200.fc33.x86_64
type:           libreport

Potential duplicate: bug 876757