Unable to create containers in Swift error "The request you have made requires authentication"

Issue

• After deploying Swift cluster according to the documentation, I am unable to create containers from the Horizon dashboard.
• The following error message shows up in the /var/log/swift/swift.log file on the Controller node:

Dec 30 07:37:53 scloudctl01 proxy-server: STDERR: WARNING:swift:Identity response: {"error": {"message": "The request you have made requires authentication.", "code": 401, "title": "Unauthorized"}} (txn: txe6cc0763bdfd4452b8106-005683d021)

• At the same time the following error message shows up in the /var/log/swift/swift.log file on one of the Storage nodes:

Dec 30 07:38:56 scloudobj01 object-replicator: Starting object replication pass.
Dec 30 07:38:56 scloudobj01 object-replicator: ERROR creating /srv/node/sda/objects: #012Traceback (most recent call last):#012  File "/usr/lib/python2.7/site-packages/swift/obj/replicator.py", line 492, in build_replication_jobs#012    mkdirs(obj_path)#012  File "/usr/lib/python2.7/site-packages/swift/common/utils.py", line 874, in mkdirs#012    os.makedirs(path)#012  File "/usr/lib64/python2.7/os.py", line 157, in makedirs#012    mkdir(name, mode)#012OSError: [Errno 13] Permission denied: '/srv/node/sda/objects'
Dec 30 07:38:56 scloudobj01 object-replicator: ERROR creating /srv/node/sdb/objects: #012Traceback (most recent call last):#012  File "/usr/lib/python2.7/site-packages/swift/obj/replicator.py", line 492, in build_replication_jobs#012    mkdirs(obj_path)#012  File "/usr/lib/python2.7/site-packages/swift/common/utils.py", line 874, in mkdirs#012    os.makedirs(path)#012  File "/usr/lib64/python2.7/os.py", line 157, in makedirs#012    mkdir(name, mode)#012OSError: [Errno 13] Permission denied: '/srv/node/sdb/objects'
Dec 30 07:38:56 scloudobj01 object-replicator: Nothing replicated for 0.00995492935181 seconds.
Dec 30 07:38:56 scloudobj01 object-replicator: Object replication complete. (0.00 minutes)
Dec 30 07:38:56 scloudobj01 object-replicator: Exception dumping recon cache: #012Traceback (most recent call last):#012  File "/usr/lib/python2.7/site-packages/swift/common/utils.py", line 2552, in dump_recon_cache#012    with lock_file(cache_file, lock_timeout, unlink=False) as cf:#012  File "/usr/lib64/python2.7/contextlib.py", line 17, in __enter__#012    return self.gen.next()#012  File "/usr/lib/python2.7/site-packages/swift/common/utils.py", line 1835, in lock_file#012    fd = os.open(filename, flags)#012OSError: [Errno 13] Permission denied: '/var/cache/swift/object.recon'
Dec 30 07:38:58 scloudobj01 object-auditor: Exception dumping recon cache: #012Traceback (most recent call last):#012  File "/usr/lib/python2.7/site-packages/swift/common/utils.py", line 2552, in dump_recon_cache#012    with lock_file(cache_file, lock_timeout, unlink=False) as cf:#012  File "/usr/lib64/python2.7/contextlib.py", line 17, in __enter__#012    return self.gen.next()#012  File "/usr/lib/python2.7/site-packages/swift/common/utils.py", line 1835, in lock_file#012    fd = os.open(filename, flags)#012OSError: [Errno 13] Permission denied: '/var/cache/swift/object.recon'
Dec 30 07:38:58 scloudobj01 object-auditor: Exception dumping recon cache: #012Traceback (most recent call last):#012  File "/usr/lib/python2.7/site-packages/swift/common/utils.py", line 2552, in dump_recon_cache#012    with lock_file(cache_file, lock_timeout, unlink=False) as cf:#012  File "/usr/lib64/python2.7/contextlib.py", line 17, in __enter__#012    return self.gen.next()#012  File "/usr/lib/python2.7/site-packages/swift/common/utils.py", line 1835, in lock_file#012    fd = os.open(filename, flags)#012OSError: [Errno 13] Permission denied: '/var/cache/swift/object.recon'
Dec 30 07:38:58 scloudobj01 object-auditor: Begin object audit "forever" mode (ZBF)
Dec 30 07:38:58 scloudobj01 object-auditor: ERROR: Unable to run auditing: [Errno 13] Permission denied: '/srv/node/sdb'
Dec 30 07:38:58 scloudobj01 object-auditor: Begin object audit "forever" mode (ALL)
Dec 30 07:38:58 scloudobj01 object-auditor: ERROR: Unable to run auditing: [Errno 13] Permission denied: '/srv/node/sdb'
Dec 30 07:38:59 scloudobj01 account-server: 10.60.201.11 - - [30/Dec/2015:12:38:59 +0000] "HEAD /sdb/51/AUTH_5dd11780ffd746e697c02636aa1f7593" 404 - "HEAD http://10.60.118.11:8080/v1/AUTH_5dd11780ffd746e697c02636aa1f7593" "txe6cc0763bdfd4452b8106-005683d021" "proxy-server 68662" 0.0002 "-" 4320 -
Dec 30 07:38:59 scloudobj01 account-server: 10.60.201.11 - - [30/Dec/2015:12:38:59 +0000] "HEAD /sda/51/AUTH_5dd11780ffd746e697c02636aa1f7593" 404 - "HEAD http://10.60.118.11:8080/v1/AUTH_5dd11780ffd746e697c02636aa1f7593" "txe6cc0763bdfd4452b8106-005683d021" "proxy-server 68662" 0.0002 "-" 4311 -