deploying smbd+winbindd in a pod requires shared net namespace

[phlogistonjohn]

Currently, when using smbd and winbindd in tandem to provide shares as a domain member the running containers must share a net namespace. smbd fails to start when the net namespace is not share. Errors are simliar to:

Security token: (NULL)
UNIX token of user 0
Primary group is 0 and contains 0 supplementary groups
Failed to fetch domain sid for ZZZ-BEST
pop_sec_ctx (0, 0) - sec_ctx_stack_ndx = 0
push_sec_ctx(0, 0) : sec_ctx_stack_ndx = 1
push_conn_ctx(0) : conn_ctx_stack_ndx = 0
setting sec ctx (0, 0) - sec_ctx_stack_ndx = 1
Security token: (NULL)
UNIX token of user 0
Primary group is 0 and contains 0 supplementary groups
Could not find map for sid S-1-5-32-544
create_builtin_administrators: Failed to create Administrators
pop_sec_ctx (0, 0) - sec_ctx_stack_ndx = 0
Failed to check for local Administrators membership (NT_STATUS_INVALID_PARAMETER_MIX)
push_sec_ctx(0, 0) : sec_ctx_stack_ndx = 1
push_conn_ctx(0) : conn_ctx_stack_ndx = 0
setting sec ctx (0, 0) - sec_ctx_stack_ndx = 1
Security token: (NULL)
UNIX token of user 0
Primary group is 0 and contains 0 supplementary groups
Could not find map for sid S-1-5-32-545
create_builtin_users: Failed to create Users
pop_sec_ctx (0, 0) - sec_ctx_stack_ndx = 0
push_sec_ctx(0, 0) : sec_ctx_stack_ndx = 1
push_conn_ctx(0) : conn_ctx_stack_ndx = 0
setting sec ctx (0, 0) - sec_ctx_stack_ndx = 1
Security token: (NULL)
UNIX token of user 0
Primary group is 0 and contains 0 supplementary groups
Could not find map for sid S-1-5-32-546
create_builtin_guests: Failed to create Guests
pop_sec_ctx (0, 0) - sec_ctx_stack_ndx = 0
Failed to check for local Guests membership (NT_STATUS_INVALID_PARAMETER_MIX)
create_local_token failed: NT_STATUS_INVALID_PARAMETER_MIX
ERROR: failed to setup guest info.

This is a minor issue as a shared net namespace may be needed for other aspects but I thought it was worth logging it.