I use the rake task to create backups for GitLab 6.8.2.
gitlab-rake gitlab:backup:create
In /etc/gitlab/gitlab.rb I added the following line:
gitlab_rails['backup_keep_time'] = 60
This is supposed to prune backups older than 60 seconds. My expectation was that a second run of gitlab:backup:create would remove the first backup if 60 seconds have passed. Though the last line in the output is
Deleting old backups ... skipping
How do I configure GitLab to actually remove old backups?
I have to create a CSR for a wildcard SSL certificate. Some FAQs from SSL providers say that I should generate the CSR file on the machine where I want to install the certificate? My understanding is that it should not matter where I generate the CSR or the key file as long as I move the files to the right location later.
So my question is: Does it matter where the CSR and key files for SSL certification are generated?
I need to install an init script that only runs on the first boot after it's installation. How can I accomplish that on Ubuntu?
Say I have a domain foo.com and a server accessible at 50.60.70.80. I have configured the DNS entries so that foo.com and www.foo.com point to 50.60.70.80. I have g-wan running on the web server. Now I want to host different web sites on foo.com and on www.foo.com.
According to the documentation I have to configure a root host and optionally some virtual hosts. So I choose foo.com to be the root host. www.foo.com is a virtual host. My problems is that g-wan seems to ignore my virtual host. No matter whether I use foo.com or ww.foo.com g-wan always serves the foo.com content.
This is my g-wan "config":
/gwan/0.0.0.0_80/#movq.org
/gwan/0.0.0.0_80/$www.movq.org
What am I doing wrong here?
I want URLs with the host foobar.com to be rewritten to www.foobar.com. How can I do this with g-wan?
I managed to get SSHFS working smoothly. I've added the following line to my /etc/fstab:
sshfs#xxx@remote_host:/path_to/remote/content /path_to/local/content fuse \
comment=sshfs,noauto,user,exec,allow_other,reconnect,kernel_cache, \
compression=no,cache_timeout=600,ServerAliveInterval=15 \
0 0
I now can mount the remote filesystem by the following command:
mount /path_to/local/content
All is pretty and well but when should I issue the command above? I have a network application running on the box which needs the content from the remote box as soon as the application is started. I'd rather use auto instead of noauto but how can I be sure that the network is ready when the fstab is "executed"?
I use SSHFS to mount a directory on a remote server. There is a user xxx on client and server. UID and GID are identical on both boxes.
I use
sshfs -o kernel_cache -o auto_cache -o reconnect -o compression=no \
-o cache_timeout=600 -o ServerAliveInterval=15 \
[email protected]:/mnt/content /home/xxx/path_to/content
to mount the directory on the remote server. When I log in as xxx on the client I have no problems. I can cd into /home/xxx/path_to/content.
But when I log in on the client as another user zzz and then
$ ls -l /home/xxx/path_to
I get this
d????????? ? ? ? ? ? content
and on
$ ls -l /home/xxx/path_to/content
I get
ls: cannot access content: Permission denied
When I do
$ ls -l /mnt
on the remote server I get
drwxr-xr-x 6 xxx xxx 4096 2011-07-25 12:51 content
What am I doing wrong? The permissions seem to be correct to me. Am I wrong?
I can't seem to find something in the documentations. Is it possible to set the cache size for fuse and/or sshfs and if so, how?
we have a distributed application which uses large amounts of content (all kind of files). There are several servers that need to access the content. Right now the content is stored on each server redundantly. But this is getting ugly.
We want to store the content on a single storage instance with large hard discs. We then want to mount the file system of this storage instance from each of our servers.
I thought about using NFS, but the security scheme doesn't seem to fit. Right now I'm looking at Samba but I'm not sure if it is the right choice. All servers are Linux and Samba's main purpose is a Windows/Linux environment. What makes Samba interesting to me is the user level security.
Aside from security another major requirement is performance. Our servers need fast access to the content. That is as fast as possible over a LAN.
Is Samba a good choice? What other options are there? What about WebDAV?
EDIT: What I need to do: We have varying number of servers that need to access a growing number of files. We expect to become several TB. We call these files the 'content'. All servers have to use the same version of the content. The servers need concurrent read-only access to the content. The content is updated relatively seldom. Something between once a week and once a month but it likely become much more often. Right now it would be possible to sync the content on each server but that will become a pain in the near future. The update has to be quite snappy. We think it would be convenient to update/sync the content on only one server (storage server) and let all other servers mount the content as a remote filesystem.
All the best
Jan
In order to test our deployment I want to simulate certain network events like connection losses, timeout, limited bandwidths etc.
I already googled for this but haven't found something that really suited my needs. ipfw seems to be what I need but I can't seem to find an ipfw package for Ubuntu. Also I'd like to know whether there are alternatives or even better tools for my task.
There seems to be a man page an ipfw but I can't find what package I have to install to use ipfw / DummyNet. Any hints?
Is it possible to get the amount of free disk space (df) with CloudWatch? If so, what metric represents the free disk space?
I have an AWS EC2 AMI in the EU region. I want to move it to the US region. The root device type is EBS and the OS is Linux.
Is it possible to transfer the image to the US region and if so how?
I can't figure out how to set up stats for HAProxy.
This is my configuration:
global
log 127.0.0.1 local0
log 127.0.0.1 local1 notice
daemon
#debug
user haproxy
group haproxy
maxconn 4096
stats socket /tmp/haproxy
defaults
log global
mode tcp
option tcplog
option dontlognull
option redispatch
option clitcpka
option srvtcpka
option tcpka
retries 3
maxconn 2000
contimeout 10000
clitimeout 50000
srvtimeout 50000
stats enable
stats hide-version
stats scope .
stats realm Haproxy\ Statistics
stats uri /haproxy?stats
stats auth xxxxx:xxxxx
option contstats
listen rtmp :1935
mode tcp
balance roundrobin
server s1 xxx.xxx.xxx.xxx:1935 check
server s2 xxx.xxx.xxx.xxx:1935 check
As far as I understand the manual there should be a stats page available via http://mysite/haproxy?stats. What am I missing?
EDIT: I can access the stats with socat but not with a web browser.
I can connect to my EC2 Linux instance via ssh using the key pair (*.pem). Is it somehow possible to connect it with ssh with out the pem file?
I've got haproxy to work for us. But right now there are two haproxy processes running. One for HTTP and the other for TCP (RTMP). I've tried to configure both proxies in one configuration file but haproxy only handles HTTP then.
My configuration file:
global
log 127.0.0.1 local0
log 127.0.0.1 local1 notice
#daemon
debug
user haproxy
group haproxy
maxconn 4096
defaults
log global
mode tcp
option tcplog
option dontlognull
option redispatch
retries 3
maxconn 2000
contimeout 10000
clitimeout 50000
srvtimeout 50000
listen http :80
mode tcp
balance roundrobin
server h1 xxx.xxx.xxx.xxx:80 check
server h2 xxx.xxx.xxx.xxx:80 check
listen rtmp :1935
mode tcp
balance roundrobin
server s1 xxx.xxx.xxx.xxx:1935 check
server s2 xxx.xxx.xxx.xxx:1935 check
This doesn't work for me. It only works when I split the configuration in two (one HTTP, one RTMP) and start two haproxy processes.
We have an interactive flash application running on AWS EC2 instances. One instance can handle between 100 and 200 users. We expect times with heavy growth and slashdot effects. To be prepared and not over-prepared we want a load balancing solution with automatic scaling.
We tried Elastic Load Balancer but it doesn't seem to work with our application. We experience many and early TCP disconnects.
Right now the best solution seems to be haproxy but it doesn't fit our automatic scaling requirement. We like to have something more programmable/scriptable. We need to add or remove backend servers often.
I'd like to know if there are other - maybe better - solutions.
We are running our servers on AWS EC2 instances. The servers have to provide HTTP on port 80 and RTMP (TCP) on port 1935.
Running a single instance works fine. But as soon as I use Elastic Load Balancing to balance the load between two EC2 instances the RTMP (TCP) connection gets lost after a minute. Even though our application should tolerate disconncts it does not right now.
Using haproxy to balance the load we do not experience these early disconncts. Elastic Load Balancer is attractive to us because of the auto-scaling feature though.
Any suggestions why this disconnects happen when we're using AWS Elastic Load Balancer?
We want to be able to add more backend servers on demand. Right now I don't see a way to add more backend servers to the config file without restarting haproxy.