I have a docker container running Ubuntu Server. I am running Docker for Windows and I have the following version of Docker and Docker Compose respectively installed:
> docker-compose -v
docker-compose version 1.11.2, build f963d76f
> docker -v
Docker version 17.03.1-ce-rc1, build 3476dbf
This is what I have tried so far without success:
// The dojo linked file exists so I've tried to update it as per this answer (http://stackoverflow.com/a/1951752/719427)
> docker exec -it dockeramp_webserver_1 ln -sf /var/www/html/externals/dojo /var/www/html/externals/public_html/js/dojo
ln: failed to create symbolic link '/var/www/html/externals/public_html/js/dojo': No such file or directory
// I have deleted the previous linked file and then I tried to create a new one
> docker exec -it dockeramp_webserver_1 ln -s /var/www/html/externals/dojo /var/www/html/externals/public_html/js/dojo
ln: failed to create symbolic link '/var/www/html/externals/public_html/js/dojo': No such file or directory
// removed the directory name from the link name
> docker exec -it dockeramp_webserver_1 ln -s /var/www/html/externals/dojo /var/www/html/externals/public_html/js
ln: failed to create symbolic link '/var/www/html/externals/public_html/js': No such file or directory
Because the error keep saying the directory doesn't exists then I've checked if the error is right or wrong:
> docker exec -u www-data -it dockeramp_webserver_1 ls -la /var/www/html/externals/dojo
total 80
drwxr-xr-x 2 root root 0 Mar 25 15:09 .
drwxr-xr-x 2 root root 4096 Mar 25 15:09 ..
drwxr-xr-x 2 root root 0 Mar 25 15:09 dijit
drwxr-xr-x 2 root root 0 Mar 25 15:09 dojo
drwxr-xr-x 2 root root 0 Mar 25 15:09 dojox
drwxr-xr-x 2 root root 0 Mar 25 15:09 mmi
-rwxr-xr-x 1 root root 74047 Mar 25 15:09 tundra.css
> docker exec -u www-data -it dockeramp_webserver_1 ls -la /var/www/html/public_html/js
total 24
drwxr-xr-x 2 root root 4096 Mar 26 14:40 .
drwxr-xr-x 2 root root 4096 Mar 25 15:11 ..
-rwxr-xr-x 1 root root 7123 Mar 25 15:09 jquery.PrintArea.js
-rwxr-xr-x 1 root root 6141 Mar 25 15:11 quoteit_delegate_search.js
They both exists so ... what I am missing here? It's not supported in Windows just yet? I have found the development team added something called mfsymlinks in a previous version than mine.
The command is telling you that /var/www/html/externals/public_html does not exist. You only showed that the /var/www/html/externals/dojo and /var/www/html/public_html/js folders exist. I believe this is a simple typo in your commands.
Related
I am using jenkins in a docker container and would like to start another instance, whenever I try to use docker command like
docker run -t -i ap/dashboard /bin/bash
I get this error:
bash: line 61: docker: command not found
How do I navigate to another container or solve this error?
I can clearly see that the vm creator was able to use the docker command by reading the /root/.ash_history
here are some details about the system:
[-] Specific release information:
3.3.1
NAME="Alpine Linux"
ID=alpine
VERSION_ID=3.3.1
PRETTY_NAME="Alpine Linux v3.3"
HOME_URL="http://alpinelinux.org"
BUG_REPORT_URL="http://bugs.alpinelinux.org"
Hostname:
b51cdbb7eebd
ENVIRONMENTAL #######################################
Environment information:
JENKINS_VOL=/var/lib/jenkins
JAVA_VERSION_BUILD=17
HOSTNAME=b51cdbb7eebd
JAVA_VERSION_MAJOR=8
JENKINS_HOME=/opt/jenkins
NLSPATH=/usr/dt/lib/nls/msg/%L/%N.cat
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/local/java/jre/bin
JAVA_BASE=/usr/local/java
PWD=/
JAVA_HOME=/usr/local/java/jre
JAVA_PKG=server-jre
LANG=C.UTF-8
XFILESEARCHPATH=/usr/dt/app-defaults/%L/Dt
SHLVL=2
HOME=/root
PKG_URL=https://circle-artifacts.com/gh/andyshinn/alpine-pkg-glibc/6/artifacts/0/home/ubuntu/alpine-pkg-glibc/packages/x86_64
JENKINS_VERSION=1.637
JAVA_VERSION_MINOR=66
_=/usr/bin/env
[-] Available shells:
# valid login shells
/bin/sh
/bin/ash
/bin/bash
[+] We can read root's home directory!
total 76
drwx------ 5 root root 4.0K Aug 28 2018 .
drwxr-xr-x 1 root root 4.0K Nov 24 10:55 ..
-rw------- 1 root root 3.1K Aug 29 2018 .ash_history
-rw------- 1 root root 155 May 16 2016 .bash_history
drwxr-xr-x 2 root root 4.0K May 12 2016 .oracle_jre_usage
drwx------ 2 root root 4.0K Aug 28 2018 .ssh
-rwxr-xr-x 1 root root 46.0K Aug 28 2018 LinEnum.sh
drwxr-xr-x 3 root root 4.0K May 12 2016 dockerfiles
-rw-r--r-- 1 root root 0 Aug 28 2018 foo
Looks like we're in a Docker container:
10:net_prio:/docker/b51cdbb7eebd806431ee4120d9b3ae050dbefe4a835bf2063446724572e45e30
9:net_cls:/docker/b51cdbb7eebd806431ee4120d9b3ae050dbefe4a835bf2063446724572e45e30
8:freezer:/docker/b51cdbb7eebd806431ee4120d9b3ae050dbefe4a835bf2063446724572e45e30
7:devices:/docker/b51cdbb7eebd806431ee4120d9b3ae050dbefe4a835bf2063446724572e45e30
6:memory:/docker/b51cdbb7eebd806431ee4120d9b3ae050dbefe4a835bf2063446724572e45e30
5:blkio:/docker/b51cdbb7eebd806431ee4120d9b3ae050dbefe4a835bf2063446724572e45e30
4:cpuacct:/docker/b51cdbb7eebd806431ee4120d9b3ae050dbefe4a835bf2063446724572e45e30
3:cpu:/docker/b51cdbb7eebd806431ee4120d9b3ae050dbefe4a835bf2063446724572e45e30
2:cpuset:/docker/b51cdbb7eebd806431ee4120d9b3ae050dbefe4a835bf2063446724572e45e30
1:name=openrc:/docker
-rwxr-xr-x 1 root root 0 May 16 2016 /.dockerenv
[-] Anything juicy in the Dockerfile:
-rw-r--r-- 1 root root 617 May 12 2016 /root/dockerfiles/jenkins/Dockerfile
I tried many docker commands without hope
is it because that I'm already inside the container??
Try with docker run -t -i ap/dashboard /bin/ash.
Maybe your container does not use bash so you should try with /bin/sh which is a symcolic link to the default installed shell processor.
I have an image from https://hub.docker.com/r/wtakuo/xv6-env. I pull it with docker pull wtakuo/xv6-env and run it with:
$ docker run -it --rm -v $(pwd):/home/xv6/xv6-riscv wtakuo/xv6-env
After container created and run image on its, I run make qemu but I get this error:
mkfs/mkfs fs.img README user/_cat user/_echo user/_forktest user/_grep user/_init user/_kill user/_ln user/_ls user/_mkdir user/_rm user/_sh user/_stressfs user/_usertests user/_grind user/_wc user/_zombie
fs.img: Permission denied
make: *** [Makefile:137: fs.img] Error 1
I don't know what should be do to fix it.
this is my directory content (with ll command):
drwxrwxr-x 8 root root 4096 Nov 1 16:30 .git/
-rw-rw-r-- 1 xv6 xv6 1174 Nov 1 16:27 LICENSE
-rw-rw-r-- 1 xv6 xv6 4709 Nov 1 16:27 Makefile
-rw-rw-r-- 1 root root 2305 Nov 1 16:24 README
-rw-rw-r-- 1 xv6 xv6 17 Nov 1 16:30 README.md
drwxrwxr-x 2 xv6 xv6 4096 Nov 4 17:57 kernel/
drwxrwxr-x 2 xv6 xv6 4096 Nov 4 17:57 mkfs/
drwxrwxr-x 2 xv6 xv6 4096 Nov 4 17:57 user/
I googled for this but not found effectively answer.
I tried
sudo chown -R user1:user1 *
but show this error: fs.img: Permission denied
For this problem, we must use from sudo command.
our user is xv6 and the password is also the same.
after use from it, we see this output:
xv6 kernel is booting
hart 1 starting
hart 2 starting
init: starting sh
I try to set up FastRTPS inside a docker container. I wrote a Dockerfile which builds FastRTPS and it's dependencies from source and installs the libraries and delivered examples. But the examples do not work:
/opt# /usr/local/examples/C++/HelloWorldExample/bin/HelloWorldExample
/usr/local/examples/C++/HelloWorldExample/bin/HelloWorldExample: error while loading shared libraries: libfastrtps.so.1: cannot open shared object file: No such file or directory
As these library was built in this container and automatically installed, it must be somewhere and they are here:
root#6e544f0699cf:/opt# ls -la /usr/local/lib/
total 9196
drwxr-xr-x 1 root root 4096 Mar 26 22:02 .
drwxr-xr-x 1 root root 4096 Mar 26 22:02 ..
drwxr-xr-x 3 root root 4096 Mar 26 22:00 cmake
drwxr-xr-x 3 root root 4096 Mar 26 22:00 foonathan_memory
lrwxrwxrwx 1 root root 15 Mar 26 22:00 libfastcdr.so -> libfastcdr.so.1
lrwxrwxrwx 1 root root 20 Mar 26 22:00 libfastcdr.so.1 -> libfastcdr.so.1.0.12
-rw-r--r-- 1 root root 99504 Mar 26 22:00 libfastcdr.so.1.0.12
lrwxrwxrwx 1 root root 16 Mar 26 22:02 libfastrtps.so -> libfastrtps.so.1
lrwxrwxrwx 1 root root 21 Mar 26 22:02 libfastrtps.so.1 -> libfastrtps.so.1.10.0
-rw-r--r-- 1 root root 8133952 Mar 26 22:01 libfastrtps.so.1.10.0
-rw-r--r-- 1 root root 1158048 Mar 26 22:00 libfoonathan_memory-0.6.2.a
drwxrwsr-x 3 root staff 4096 Mar 26 21:37 python3.7
It is also possible to look into this library # nm -D /usr/local/lib/libfastrtps.so.1.
But the output of ldconfig is a bit strange:
# ldconfig -v | grep /usr/local/lib
ldconfig: Can't stat /usr/local/lib/x86_64-linux-gnu: No such file or directory
ldconfig: Path `/lib/x86_64-linux-gnu' given more than once
ldconfig: Path `/usr/lib/x86_64-linux-gnu' given more than once
ldconfig: /lib/x86_64-linux-gnu/ld-2.28.so is the dynamic linker, ignoring
/usr/local/lib:
Here I expected the libraries listed but they are not.
How to fix that?
EDIT 1
some extractions from the make output while building FastRTPS:
...
-- Installing: /usr/local/lib/libfastrtps.so.1.10.0
-- Installing: /usr/local/lib/libfastrtps.so.1
-- Installing: /usr/local/lib/libfastrtps.so
...
-- Installing: /usr/local/examples/C++/HelloWorldExample/bin/HelloWorldExample
-- Set runtime path of "/usr/local/examples/C++/HelloWorldExample/bin/HelloWorldExample" to ""
Why the runtime path is set to "" - nothing?
The last edit led to the issue and also to the solution.
CMake removes the RPATH. In case of the usage within a docker container, this stripping makes no sense and can be turned off as described in this post by adding this argument to the CMake configuration call:
-DCMAKE_INSTALL_RPATH_USE_LINK_PATH=TRUE
At the end my Dockerfile looks like this:
FROM fastrtps-core
WORKDIR /opt
RUN git clone https://github.com/eProsima/Fast-RTPS.git && \
export LDFLAGS="-Wl,--copy-dt-needed-entries" && \
mkdir build && \
cd build && \
cmake ../Fast-RTPS/examples \
-DCMAKE_INSTALL_RPATH_USE_LINK_PATH=TRUE && \
cmake --build . --target install -j 16 && \
cd /opt && \
rm -rf build Fast-RTPS
Now the install-step output shows the correct runtime-path setting:
-- Installing: /usr/local/examples/C++/HelloWorldExample/HelloWorldExample
-- Set runtime path of "/usr/local/examples/C++/HelloWorldExample/HelloWorldExample" to "/usr/local/lib"
I have folder in /media on ubuntu - shared from windows via fstab and cifs-utils. Can I share this folder to other user: "miki" (not root)
root#localhost:/media#
drwxr-xrwx 4 root root 4096 Nov 15 12:21 .
drwxr-xr-x 23 root root 4096 Nov 14 06:34 ..
drwxr-xr-x 2 padm root 0 Nov 15 09:34 Archive
drwxr-xrwx 2 root root 4096 Feb 25 2019 kekik
I have try with:
root#localhost:~# sudo chmod -R 757 /media/Archive/
but get:
chmod: changing permissions of '/media/Archive/': Permission denied
Find a solution:
need to modify /etc/fstab by changing:
//windowsServer/Archive /media/Archive cifs username=wundowsuser,password=somepass,uid=1000,iocharset=iso8859-1,rw,file_mode=0777,dir_mode=0777,vers=1.0 0 0
and change group of folder (must umont it first!)
sudo umount -l /media/Archive
sudo chown miki:miki /media/Archive/
Please find below set of cmds & outputs
[ec2-user#ip-172-31-38-218 opt]$ ls -al
total 9416
drwxr-xr-x 3 root root 4096 Nov 7 13:52 .
dr-xr-xr-x 25 root root 4096 Nov 7 13:16 ..
-rw-r--r-- 1 root root 9625824 Sep 4 22:52 apache-tomcat-8.5.34.tar.gz
drwxr-xr-x 5 root root 4096 Aug 11 01:26 aws
[ec2-user#ip-172-31-38-218 opt]$ sudo groupadd tomcatgrp
[ec2-user#ip-172-31-38-218 opt]$ sudo useradd -s /bin/false -g tomcatgrp -d /opt/tomcatfolder tomcatuser
[ec2-user#ip-172-31-38-218 opt]$ ls -al
total 9420
drwxr-xr-x 4 root root 4096 Nov 7 13:53 .
dr-xr-xr-x 25 root root 4096 Nov 7 13:16 ..
-rw-r--r-- 1 root root 9625824 Sep 4 22:52 apache-tomcat-8.5.34.tar.gz
drwxr-xr-x 5 root root 4096 Aug 11 01:26 aws
drwx------ 2 tomcatuser tomcatgrp 4096 Nov 7 13:53 tomcatfolder
Now, when I run the cmd I am getting Permission denied as follows
[ec2-user#ip-172-31-38-218 opt]$ cd /opt/tomcatfolder/
-bash: cd: /opt/tomcatfolder/: Permission denied
Can you please help in resolving this above issue..?
I followed instructions of installing Tomcat from this link how-to-install-apache-tomcat-8-on-centos-7
It seems you are the ec2-user, but the directory is owned by tomcatuser and the permissions on the directory do now allow other users or groups to read it.
Try sudo chmod 755 /opt/tomcatfolder/ and then cd into it.
That will add read and execute permissions to the directory.