Not able to mount azure file share into local RHEL7 VM - azure-storage

I want to mount(symlink) from Azure file share to a local RHEL7 VM . I am using the following command
mount -t cifs //<storage-account-name>.file.core.windows.net/<share-name> /mymountpoint -o vers=3.0,username=<storage-acc-name>,password=<pwd>,dir_mode=0777,file_mode=0777,sec=ntlmssp,mfsymlinks
but getting the following error
mount error(13): Permission denied
Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)
`The dmesg | tail gives the following log
[root#googleapps ~]# dmesg | tail
[98383.619149] fs/cifs/smb2misc.c: SMB2 data length 0 offset 0
[98383.619151] fs/cifs/smb2misc.c: SMB2 len 77
[98383.619163] fs/cifs/transport.c: cifs_sync_mid_result: cmd=1 mid=1 state=4
[98383.619168] Status code returned 0xc0000022 STATUS_ACCESS_DENIED
[98383.619175] fs/cifs/smb2maperror.c: Mapping SMB2 status code -1073741790 to POSIX err -13
[98383.619177] fs/cifs/misc.c: Null buffer passed to cifs_small_buf_release
[98383.619181] CIFS VFS: Send error in SessSetup = -13
[98383.619185] fs/cifs/connect.c: CIFS VFS: leaving cifs_get_smb_ses (xid = 59) rc = -13
[98383.619297] fs/cifs/connect.c: CIFS VFS: leaving cifs_mount (xid = 58) rc = -13
[98383.619300] CIFS VFS: cifs_mount failed w/return code = -13`

Try removing the Symlink option then manually linking it afterwards. I did a quick test on my machine, a RHEL V7 (Brand new for testing) on Azure, and linked a file share with it using the following steps:
1- Manually create the mount point dir, then run the following:
sudo yum install cifs-utils
sudo mount -t cifs //USERNAME.file.core.windows.net/FILESHARE ~/mountpoint/ -o vers=3.0,username=<>,password=<>,dir_mode=0777,file_mode=0777,sec=ntlmssp
Then try using the symlink afterwards.

I had the similar problem. Read most of the forums tried all in the end found that password used by me was wrong and it has to be SSH key which is generated with storage account. I got hint to this by using trouble shooting script by Azure support.
You can find this script here :
https://gallery.technet.microsoft.com/Troubleshooting-tool-for-02184089
Bash script found here can be used to go through series of probable issues and will give you a fair idea of the problem.

Sometimes you will get Status code returned 0xc0000022 STATUS_ACCESS_DENIED if you do not have the proper "Public network access" setting.
Set this setting to "All networks" or add your Server IP/CIDR to the firewall exclusion list.

Related

podman CentOS 8 not starting container as non-root user

I am trying to start busybox container as non root on CentOS 8 server, but its giving the below message.
What is the correct way to start the container as non-root user?
podman run -it --name busy docker.io/library/busybox sh
Trying to pull docker.io/library/busybox...Getting image source signatures
Copying blob bdbbaa22dec6 done
Copying config 6d5fcfe5ff done
Writing manifest to image destination
Storing signatures
ERRO[0003] Error pulling image ref //busybox:latest: Error committing the finished image: error adding layer with blob "sha256:bdbbaa22dec6b7fe23106d2c1b1f43d9598cd8fc33706cc27c1d938ecd5bffc7": Error processing tar file(exit status 1): there might not be enough IDs available in the namespace (requested 65534:65534 for /home): lchown /home: invalid argument
Failed
Error: unable to pull docker.io/library/busybox: unable to pull image: Error committing the finished image: error adding layer with blob "sha256:bdbbaa22dec6b7fe23106d2c1b1f43d9598cd8fc33706cc27c1d938ecd5bffc7": Error processing tar file(exit status 1): there might not be enough IDs available in the namespace (requested 65534:65534 for /home): lchown /home: invalid argument
Yes, the command you run is correct. On my Fedora 31 system it works just fine.
[testuser#fedora31 ~]$ podman run -it --name busy docker.io/library/busybox sh
Trying to pull docker.io/library/busybox...
Getting image source signatures
Copying blob bdbbaa22dec6 done
Copying config 6d5fcfe5ff done
Writing manifest to image destination
Storing signatures
/ # exit
[testuser#fedora31 ~]$ podman --version
podman version 1.8.0
[testuser#fedora31 ~]$
The flag --rm is also often useful.
It seems the error you get is related to the UID mapping.
Here is some information regarding running "rootless" podman:
https://github.com/containers/libpod/blob/master/docs/tutorials/rootless_tutorial.md
What also might be interesting:
"Does not work on NFS or parallel filesystem homedirs"
Quote from
https://github.com/containers/libpod/blob/master/rootless.md

Sourcetree not able to access GitLab

I have 2 PCs, each with SourceTree installed. On each machine, I run ssh-keygen -t rsa to generate the public & private keys and I place them in the folders:
G:/.ssh/PC1
G:/.ssh/PC2
under each folder, there are 3 files : id_rsa, id_rsa.pub, known_hosts.
I copied the content of each id_ras.pub to create a SSH key in server. On each machine, in SourceTree, I specify the "SSH Client Configuration" so that
SSH Key points to G:\.ssh\PC1\id_rsa & G:\.ssh\PC2\id_rsa
OpenSSH is used in both machine for SSH Client.
But it appears that one of the PCs is able to access GitLab properly in SourceTree, i.e., push/pull work; on the other PC, when launching SourceTree, it alerts:
'ssh-agent' failed with code -1: System.Exception:Unable to start 'C:\Users\xxx\AppData\Local\Atlassian\SourceTree\git_local\bin\ssh-agent.exe' check the git installation.
Further, I tried a new check out from GitLab to a new folder on the PC that is not working and after that it starts to work. But later, it stops working and gives the same alert.
I tried to pull from repository, and it errors:
git -c diff.mnemonicprefix=false -c core.quotepath=false fetch origin
C:\Users\xxx\AppData\Local\Atlassian\SourceTree\git_local\bin\sh.exe: *** fork: can't reserve
memory for stack 0x2E60000 - 0x3060000, Win32 error 0
0 [main] sh 11020 sync_with_child: child 7124(0x238) died before initialization with status code 0x1
13 [main] sh 11020 sync_with_child: *** child state waiting for longjmp
C:\Program Files (x86)\Atlassian\SourceTree\tools\openssh_wrapper.sh: fork: Resource temporarily unavailable
fatal: Could not read from remote repository.

I m trying to integrate ldap with devstack and when i did ./stack.sh i got this localrc: line 9: KEYSTONE_IDENTITY_BACKEND: command not found

localrc file
ADMIN_PASSWORD=password2 MYSQL_PASSWORD=password2
RABBIT_PASSWORD=password2 SERVICE_PASSWORD=password2
SERVICE_TOKEN=token2
ENABLED_SERVICES=key,n-api,n-crt,n-obj,n-cpu,n-net,n-cond,cinder,c-sch,c-api,c-vol,n-sch,n-novnc,n-xvnc,n-cauth,horizon,mysql,rabbit,ldap
KEYSTONE_IDENTITY_BACKEND=ldap
KEYSTONE_CLEAR_LDAP=yes LDAP_PASSWORD=9632
I followed this website(http://www.ibm.com/developerworks/cloud/library/cl-ldap-keystone/)
I am assuming the above snippet is from a file written in shell script. Your example looks Ok.
I checked the link you provided and noted that the line you say failed is written in the IBM example as:
KEYSTONE_IDENTITY_BACKEND = ldap
Which is not legal sh (or bash) and would cause the error message you described.
KEYSTONE_IDENTITY_BACKEND = ldap
-bash: KEYSTONE_IDENTITY_BACKEND: command not found
I suspect you copied and pasted the bad example from the link into your localrc file, which caused the error you saw, but somehow when you wrote the SO question, you corrected the mistake by removing the spaces around the "=".
Edit: Investigation
;TLDR
Create a file in the root of the devstack repo, devstack/local.conf with the contents:
[[local|localrc]]
ADMIN_PASSWORD=password2
MYSQL_PASSWORD=password2
RABBIT_PASSWORD=password2
SERVICE_PASSWORD=password2
SERVICE_TOKEN=token2
ENABLED_SERVICES=key,n-api,n-crt,n-obj,n-cpu,n-net,n-cond,cinder,c-sch,c-api,c-vol,n-sch,n-novnc,n-xvnc,n-cauth,horizon,mysql,rabbit,ldap
KEYSTONE_IDENTITY_BACKEND=ldap
KEYSTONE_CLEAR_LDAP=yes
LDAP_PASSWORD=9632
Full Description
I installed devstack on Centos7 (using the Devstack Quick Start Guide):
git clone https://git.openstack.org/openstack-dev/devstack
cd devstack
./stack.sh
I entered passwords as prompted, but eventually it failed with the error:
Error: pg_config executable not found.
Please add the directory containing pg_config to the PATH
or specify the full executable path with the option:
python setup.py build_ext --pg-config /path/to/pg_config build ...
or with the pg_config option in 'setup.cfg'.
I traced the problem to a limited PATH in the sudoers entry, and because my postgreSQL install is in a non-standard location, I linked pg_config into /usr/local/bin and ran stack.sh again:
sudo ln -s /usr/pgsql-9.3/bin/pg_config /usr/local/bin/pg_config
./stack.sh
(You probably won't have to do this if Postgres is in a standard location).
Install took a long time -
This is your host IP address: 192.168.200.181
This is your host IPv6 address: ::1
Horizon is now available at http://192.168.200.181/dashboard
Keystone is serving at http://192.168.200.181/identity/
The default users are: admin and demo
The password: 12345678
2016-07-17 18:16:32.834 | WARNING:
2016-07-17 18:16:32.834 | Using lib/neutron-legacy is deprecated, and it will be removed in the future
2016-07-17 18:16:32.834 | stack.sh completed in 1447 seconds.
I killed the devstack session and did it all again with a clean git repo and with a localrc file.
./unstack.sh
cd ..
git clone https://git.openstack.org/openstack-dev/devstack
cd devstack
cat << __EOF > local.conf
[[local|localrc]]
ADMIN_PASSWORD=password2
MYSQL_PASSWORD=password2
RABBIT_PASSWORD=password2
SERVICE_PASSWORD=password2
SERVICE_TOKEN=token2
ENABLED_SERVICES=key,n-api,n-crt,n-obj,n-cpu,n-net,n-cond,cinder,c-sch,c-api,c-vol,n-sch,n-novnc,n-xvnc,n-cauth,horizon,mysql,rabbit,ldap
KEYSTONE_IDENTITY_BACKEND=ldap
KEYSTONE_CLEAR_LDAP=yes
LDAP_PASSWORD=9632
__EOF
./stack.sh
This time there were no password prompts, so the local config was definitely read.

Docker-machine : ca.pem not found

Here i am creating a test machine(dev) using the docker machine.
$ docker-machine create -d virtualbox dev
Creating CA: C:\Users\xxx\.docker\machine\certs\ca.pem
Creating client certificate: C:\Users\xxx\.docker\machine\certs\cert.pem
Creating VirtualBox VM...
Creating SSH key...
Starting VirtualBox VM...
Starting VM...
The vm gets created and runs with out flaws.
And here is the error when i run the following command:
$ docker-machine env dev
open C:\Users\xxx\.docker\machine\machines\dev\ca.pem: The system cannot fin
d the file specified.
I have no idea how to deal with this problem. Tried restarting boot2docker.
You should try using docker-machine regenerate-certs dev. The problem i think is that somehow your .pem file got deleted or was not created. I had the same issue and regenerating the certs fixed the problem (reboot did not help btw).
I guess you are getting Docker-machine : ca.pem not found error even when you use docker info or any command with docker
Try this command: docker-machine env -u
output will be similar to:
unset DOCKER_TLS_VERIFY
unset DOCKER_HOST
unset DOCKER_CERT_PATH
unset DOCKER_MACHINE_NAME
# Run this command to configure your shell:
# eval $(docker-machine env -u)
now enter eval $(docker-machine env -u)
this should do the work. Try docker info to be sure finally.
I was getting the exact same error. It turned out to be the Cisco AnyConnect client affecting my networking settings. It's not enough to quit AnyConnect, you have to reboot your machine to restore your settings.
If someone knows more about how AnyConnect is affecting things and if there are solutions better than rebooting, I'd love to hear about it!
Copy certificates from "C:\Users\xxx\.docker\machine\certs"
Paste certificates to "C:\Users\xxx\.docker\machine\machines\dev"
NOTE: This error was on Windows 10 Docker
Here was my error:
#user ➜ git-repo git(users/user/dev) ✗ docker
unable to resolve docker endpoint: open C:\Users\user\.docker\ca.pem: The system cannot find the file specified.
Here is the link to the shell file I used to recreate the certificates I named it generate_docker_cert.sh:
https://gist.github.com/bradrydzewski/a6090115b3fecfc25280
So I went to that directory that the error output:
cd C:\Users\user\.docker\
Created that file:
notepad generate_docker_cert.sh
Copied the values from the link into there and saved.
Then ran that .sh file:
.\generate_docker_cert.sh
Then the docker command worked:
#user ➜ git-repo git(users/user/dev) ✗ docker
Usage: docker [OPTIONS] COMMAND
A self-sufficient runtime for containers
...

dotcloud push on cygwin fails with "rsync error: unexplained error (code 255)" (similar with git and hg)

Though I have followed the usual steps for using the dotCloud CLI under Cygwin, dotcloud push fails in all cases: --rsync, --hg, and --git.
I am on Windows 8 and Cygwin.
How can I push successfully?
Sample output:
me#host /cygdrive/d/project
$ dotcloud push --rsync
==> Pushing code with rsync from "./" to application myapp
rsync: connection unexpectedly closed (0 bytes received so far) [sender]
rsync error: unexplained error (code 255) at /home/lapo/package/rsync-3.0.9-1/src/rsync-3.0.9/io.c(605) [sender=3.0.9]
me#host /cygdrive/d/project
$ dotcloud push --git
Permission denied (publickey,password).r from "./" to application myapp
fatal: The remote end hung up unexpectedly
me#host /cygdrive/d/project
$ dotcloud push --hg
==> Pushing code with mercurial from "./" to application myapp
abort: no suitable response from remote hg!
Error: Mercurial returned a fatal error
You may be running into a bug in Cygwin's group permissions. Vineet Gupta gives a workaround in his blog. The problem comes from the very strict permissions expected by ssh around the keys, and the solution is to set the permission on the ssh key properly (to 600, rw by owner only). Cygwin seems to need the group to be added manually.
Updating the steps to get the dotCloud CLI installed, including setting the permissions, leads to:
Start the Cygwin Setup.
Select default choices until you reach the package selection dialog.
Enable the following packages:
net/openssh
net/rsync
devel/git
devel/mercurial
python/python (make sure it’s at least 2.6!)
web/wget
After the installation, you should have a Cygwin icon on your desktop. Start it: you will get a command-line shell.
Download easy_install
wget http://peak.telecommunity.com/dist/ez_setup.py
Install easy_install
python ez_setup.py
You now have easy_install; let’s use it to install pip:
easy_install pip
Now install dotcloud (the CLI)
pip install dotcloud
Set up the CLI with your credentials. This will also download the ssh key.
dotcloud setup
New Step Update the permissions on your dotCloud key:
chgrp Users ~/.dotcloud_cli/dotcloud.key
chmod 600 ~/.dotcloud_cli/dotcloud.key
Now you should be able to dotcloud push
If you have multiple dotCloud accounts, then you will need to repeat this process for each account, since each account has its own key. Also note that you shouldn't have to set these permissions manually, but it seems like the group ownership is sometimes the wrong default in Cygwin. Linux and OSX don't seem to show this problem, though the permissions must be 600 for all OSes, so it is worth checking.