Revert "Drop linux capabilities and rework users/groups"

roles/etcd/defaults/main.yml

@@ -3,26 +3,10 @@ etcd_bin_dir: "{{ local_release_dir }}/etcd/etcd-{{ etcd_version }}-linux-amd64/
 
 etcd_config_dir: /etc/ssl/etcd
 etcd_cert_dir: "{{ etcd_config_dir }}/ssl"
+etcd_cert_group: root
 
 etcd_script_dir: "{{ bin_dir }}/etcd-scripts"
 
-# Linux capabilities to be dropped for container engines
-etcd_drop_cap:
-  - chown
-  - dac_override
-  - fowner
-  - fsetid
-  - kill
-  - setgid
-  - setuid
-  - setpcap
-  - net_bind_service
-  - net_raw
-  - sys_chroot
-  - mknod
-  - audit_write
-  - setfcap
-
 # Limits
 etcd_memory_limit: 512M
 etcd_cpu_limit: 300m