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.
Host OS: Windows 10
Vagrant: 2.2.4
VirtualBox: 6.0.6 r130049
When I run vagrant up, it prints this error message:
The following SSH command responded with a non-zero exit status.
Vagrant assumes that this means the command failed!
setup
Stdout from the command:
Stderr from the command:
bash: line 4: setup: command not found
The machine can be booted normally and SSH from my host to Virtual machine is OK but the synced folder is not working. I know this may not be a critical issue but still feel frustrated as I use my host machine to develop codes and "sync" these codes so that they can be loaded in my virtual machine.
Any advice is highly appreciated.
ps: When I boot a full UI virtual machine (different from my above mentioned) from my VirtualBox directly, it seems OK to have a "sync" directory and the VBGuestAdditions can be installed without errors.
It is a bug in VirtualBox 6.0.6 and it still exists in 6.0.8. The solution is to downgrade your VirtualBox itself and the Guest Extensions to 6.0.4.
My OS is Windows 10 and I am running Docker version 17.06.0-ce-win19. I am trying to set up a container so that it will restart automatically on reboot.
When I use the command:
docker run -it microsoft/nanoserver --restart=always
I’m getting the following error:
docker: Error response from daemon: container 35046c88d2564523464ecabc4d48eb0550115e33acb25b0555224e7c43d21e74 encountered an error during CreateProcess: failure in a Windows system call: The system cannot find the file specified. (0x2) extra info: {"ApplicationName":"","CommandLine":"--restart=always","User":"","WorkingDirectory":"C:\","Environment":{},"EmulateConsole":true,"CreateStdInPipe":true,"CreateStdOutPipe":true,"CreateStdErrPipe":false,"ConsoleSize":[30,120]}.
whereas if I leave out the
--restart=always
everything works fine.
Is there something else I need to do to get --restart options working on Windows?
Parameters shall be coming before image:tag in CLI
I was following Openshift's Local Cluster Management documentation.
After I ran oc cluster up
[root#user ~]# oc cluster up
Starting OpenShift using openshift/origin:v3.6.0 ...
-- Checking OpenShift client ... OK
-- Checking Docker client ... OK
-- Checking Docker version ...
WARNING: Docker version is 1.21, it needs to be >= 1.22
-- Checking for existing OpenShift container ... OK
-- Checking for openshift/origin:v3.6.0 image ... OK
-- Checking Docker daemon configuration ... OK
-- Checking for available ports ... FAIL
Error: Cannot get TCP port information from Kubernetes host
Caused By:
Error: cannot create container using image openshift/origin:v3.6.0
Caused By:
Error: Error response from daemon: SHM size must be greater then 0
[root#ip-172-31-0-186 ~]# oc cluster up --loglevel=5
-- Checking OpenShift client ...
-- Checking Docker client ...
I0803 04:30:33.543172 1417 up.go:590] No Docker environment variables found. Will attempt default socket.
I0803 04:30:33.543221 1417 up.go:595] No Docker host (DOCKER_HOST) configured. Will attempt default socket.
-- Checking Docker version ...
I0803 04:30:33.543240 1417 helper.go:114] Retrieving Docker version
I0803 04:30:33.554087 1417 helper.go:120] Docker version results: &types.Version{Version:"1.9.1", APIVersion:"1.21", GitCommit:"78ee77d/1.9.1", GoVersion:"go1.4.2", Os:"linux", Arch:"amd64", KernelVersion:"3.10.0-693.el7.x86_64", Experimental:false, BuildTime:""}
I0803 04:30:33.554126 1417 helper.go:124] APIVersion: 1.21
I0803 04:30:33.554158 1417 up.go:686] Checking that docker API version is at least 1.22
WARNING: Docker version is 1.21, it needs to be >= 1.22
-- Checking for existing OpenShift container ...
I0803 04:30:33.554181 1417 helper.go:171] Inspecting docker container "origin"
I0803 04:30:33.555084 1417 helper.go:175] Container "origin" was not found
-- Checking for openshift/origin:v3.6.0 image ...
I0803 04:30:33.555101 1417 helper.go:143] Inspecting Docker image "openshift/origin:v3.6.0"
I0803 04:30:33.556444 1417 helper.go:146] Image "openshift/origin:v3.6.0" found: &types.ImageInspect{ID:"c6d16974c8a3a5da3ab799533daa2dbd54e56b1f0ebbad59345154fc8e836ff2", RepoTags:[]string{"docker.io/openshift/origin:v3.6.0"}, RepoDigests:[]string{}, Parent:"395d30169bc02cca2e7083926b0fd6f2e6b7034a6de41a811cce0ab7c7473fca", Comment:"", Created:"2017-08-01T18:34:13.736398725Z", Container:"ae53137cc1b98b2f93051589d6aee252e505ac82f8e7a31f5ab49bfc0e9dc91a", ContainerConfig:(*container.Config)(0xc420277b00), DockerVersion:"1.12.6", Author:"", Config:(*container.Config)(0xc4202e2120), Architecture:"amd64", Os:"linux", Size:611206034, VirtualSize:974248741, GraphDriver:types.GraphDriverData{Name:"devicemapper", Data:map[string]string{"DeviceId":"7", "DeviceName":"docker-202:2-25214823-c6d16974c8a3a5da3ab799533daa2dbd54e56b1f0ebbad59345154fc8e836ff2", "DeviceSize":"107374182400"}}, RootFS:types.RootFS{Type:"", Layers:[]string(nil), BaseLayer:""}}
-- Checking Docker daemon configuration ...
I0803 04:30:33.556503 1417 helper.go:65] Retrieving Docker daemon info
I0803 04:30:33.681753 1417 helper.go:71] Docker daemon info: &types.Info{ID:"IITV:S6LY:XNQS:LA63:VAH6:POZR:RGCW:MFWK:OTI7:DEII:AQK5:FDC6", Containers:0, ContainersRunning:0, ContainersPaused:0, ContainersStopped:0, Images:6, Driver:"devicemapper", DriverStatus:[][2]string{[2]string{"Pool Name", "docker-202:2-25214823-pool"}, [2]string{"Pool Blocksize", "65.54 kB"}, [2]string{"Base Device Size", "107.4 GB"}, [2]string{"Backing Filesystem", ""}, [2]string{"Data file", "/dev/loop0"}, [2]string{"Metadata file", "/dev/loop1"}, [2]string{"Data Space Used", "1.091 GB"}, [2]string{"Data Space Total", "107.4 GB"}, [2]string{"Data Space Available", "18.09 GB"}, [2]string{"Metadata Space Used", "1.339 MB"}, [2]string{"Metadata Space Total", "2.147 GB"}, [2]string{"Metadata Space Available", "2.146 GB"}, [2]string{"Udev Sync Supported", "true"}, [2]string{"Deferred Removal Enabled", "false"}, [2]string{"Deferred Deletion Enabled", "false"}, [2]string{"Deferred Deleted Device Count", "0"}, [2]string{"Data loop file", "/var/lib/docker/devicemapper/devicemapper/data"}, [2]string{"Metadata loop file", "/var/lib/docker/devicemapper/devicemapper/metadata"}, [2]string{"Library Version", "1.02.140-RHEL7 (2017-05-03)"}}, SystemStatus:[][2]string(nil), Plugins:types.PluginsInfo{Volume:[]string(nil), Network:[]string(nil), Authorization:[]string(nil)}, MemoryLimit:true, SwapLimit:true, KernelMemory:false, CPUCfsPeriod:true, CPUCfsQuota:true, CPUShares:false, CPUSet:false, IPv4Forwarding:true, BridgeNfIptables:true, BridgeNfIP6tables:true, Debug:false, NFd:15, OomKillDisable:true, NGoroutines:25, SystemTime:"2017-08-03T04:30:33.681150233-04:00", ExecutionDriver:"native-0.2", LoggingDriver:"json-file", CgroupDriver:"", NEventsListener:0, KernelVersion:"3.10.0-693.el7.x86_64", OperatingSystem:"Red Hat Enterprise Linux Server 7.4 (Maipo)", OSType:"", Architecture:"", IndexServerAddress:"https://index.docker.io/v1/", RegistryConfig:(*registry.ServiceConfig)(0xc4210fb700), NCPU:2, MemTotal:3973541888, DockerRootDir:"/var/lib/docker", HTTPProxy:"", HTTPSProxy:"", NoProxy:"", Name:"ip-172-31-0-186.us-west-2.compute.internal", Labels:[]string(nil), ExperimentalBuild:false, ServerVersion:"1.9.1", ClusterStore:"", ClusterAdvertise:"", SecurityOptions:[]string(nil)}
I0803 04:30:33.681847 1417 helper.go:42] Looking for "172.30.0.0/16" in []*registry.NetIPNet{(*registry.NetIPNet)(0xc4210f1a10), (*registry.NetIPNet)(0xc4210f1a70)}
I0803 04:30:33.681859 1417 helper.go:46] Found "172.30.0.0/16"
-- Checking for available ports ...
I0803 04:30:33.681920 1417 run.go:181] Creating container named ""
config:
image: openshift/origin:v3.6.0
entry point:
/bin/bash
command:
-c
cat /proc/net/tcp && ( [ -e /proc/net/tcp6 ] && cat /proc/net/tcp6 || true)
host config:
pid mode: host
user mode:
network mode: host
FAIL
Error: Cannot get TCP port information from Kubernetes host
Caused By:
Error: cannot create container using image openshift/origin:v3.6.0
Caused By:
Error: Error response from daemon: SHM size must be greater then 0
I have placed kubernetes config file in .kube/config. Still getting same error. Kubernetes cluster should be in same machine?
UPDATE-1
Install latest version from docker docs
To resolve dependency, installed container-selinux (sudo yum install ftp://fr2.rpmfind.net/linux/centos/7.3.1611/extras/x86_64/Packages/container-selinux-2.9-4.el7.noarch.rpm)
After I try to bringup the cluster with oc cluster up. This time, it failing at docker configuration.
[root#ip-172-31-0-186 ~]# oc cluster up
Starting OpenShift using openshift/origin:v3.6.0 ...
-- Checking OpenShift client ... OK
-- Checking Docker client ... OK
-- Checking Docker version ... OK
-- Checking for existing OpenShift container ... OK
-- Checking for openshift/origin:v3.6.0 image ... OK
-- Checking Docker daemon configuration ... FAIL
Error: did not detect an --insecure-registry argument on the Docker daemon
Solution:
Ensure that the Docker daemon is running with the following argument:
--insecure-registry 172.30.0.0/16
Docs says, update the --insecure-registry 172.30.0.0/16 in /etc/sysconf/docker. But for new version of docker there is no file in that location. Any way I have created and updated the /etc/sysconf/docker. But still getting the above error.
Ok, the problem is insecure registry configuration. Specify insecure registry in daemon.json in /etc/docker with below config
{
"insecure-registries": [
"172.30.0.0/16"
]
}
This is working latest docker also.
For any particular version of Kubernetes or OpenShift the supported Docker version is little behind.
So I would advise you to install docker not the latest one from docker documentation. But install using your linux distribution's package manager. For Fedora and CentOS just do:
sudo yum install -y docker
Once you have done that all the dependency management will be taken care of and you don't need to manually install anything else.
Now that you have installed docker using the package manager you will find the /etc/sysconfig/docker. And you can add that line --insecure-registry 172.30.0.0/16.
HTH.
So after restarting my httpd redis crashed (due to the number of sudden requests sent via httpd and written on redis) and now when I try to restart redis on my centos 6.5 server I get the following error:
[root#host /]# /usr/sbin/redis-server restart
[1705] 17 Apr 00:30:49 # Fatal error, can't open config file 'restart'
I have also tried to login to redis using redis-cli and I get an error stating the connection to the server failed.
What options do I have to safely restart the server?
From the /src directory where you downloaded and unzipped your redis source, run the following. This is for RHEL based systems.
make install
# (OR)
sudo cp src/redis-server /usr/local/bin/
sudo cp src/redis-cli /usr/local/bin/