Added wrapper dockerfile and updated linux readme

.devcontainer/CentOS-Base.repo

@@ -0,0 +1,46 @@
+[base]
+name=CentOS-$releasever - Base
+mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os&infra=$infra 
+#baseurl=http://mirror.centos.org/centos/$releasever/os/$basearch/ 
+gpgcheck=1 
+enabled=0 
+gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
+
+#released updates
+
+[updates]
+name=CentOS-$releasever - Updates
+mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates&infra=$infra 
+#baseurl=http://mirror.centos.org/centos/$releasever/updates/$basearch/ 
+gpgcheck=1 
+enabled=0 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
+
+#additional packages that may be useful
+
+[extras]
+name=CentOS-$releasever - Extras 
+mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras&infra=$infra 
+#baseurl=http://mirror.centos.org/centos/$releasever/extras/$basearch/ 
+gpgcheck=1 
+enabled=0 
+gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
+
+# Vault
+
+[Vault-base]
+name=Vault - CentOS-$releasever - Base 
+baseurl=http://vault.centos.org/centos/$releasever/os/$basearch/ 
+gpgcheck=1 
+gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-$releasever
+
+[Vault-updates]
+name=Vault - CentOS-$releasever - Updates 
+baseurl=http://vault.centos.org/centos/$releasever/updates/$basearch/ 
+gpgcheck=1 
+gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-$releasever
+
+[Vault-extras] 
+name=Vault - CentOS-$releasever – Extras 
+baseurl=http://vault.centos.org/centos/$releasever/extras/$basearch/ 
+gpgcheck=1 
+gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-$releasever

.devcontainer/Dockerfile

@@ -0,0 +1,41 @@
+FROM alpine:latest AS downloader
+
+RUN apk add --no-cache wget tar
+
+WORKDIR /sources
+
+# get new mirror from https://www.openssh.com/portable.html should this one fail
+RUN wget https://ftp.hostserver.de/pub/OpenBSD/OpenSSH/portable/openssh-9.9p1.tar.gz -O openssh.tar.gz && \
+ tar -xzvf openssh.tar.gz
+
+FROM gitlab.cs.pub.ro:5050/ac/ac-public/vivado-slim:1.0.0 
+
+
+COPY ./CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo
+RUN yum clean all
+RUN yum makecache 
+
+RUN yum -y install xorg-x11-xauth 
+
+
+COPY --from=downloader /sources/openssh-9.9p1 /src/openssh-portable
+
+WORKDIR /src/openssh-portable
+RUN ./configure --without-openssl --without-zlib
+RUN make install
+COPY ./sshd_config /usr/local/etc/sshd_config
+
+# modify this as you wish
+RUN passwd root --delete
+
+RUN useradd sshd
+
+COPY ./entrypoint.sh /entrypoint.sh
+RUN chmod +x /entrypoint.sh
+RUN echo "cd /workspaces/computer-architecture" >> /root/.bashrc
+
+WORKDIR /workspaces/computer-architecture
+# uncomment if vivado shows blank screen
+# RUN echo "export _JAVA_AWT_WM_NONREPARENTING=1" >> /root/.bashrc
+
+CMD ["/entrypoint.sh"]

.devcontainer/devcontainer.json

@@ -1,14 +1,15 @@
 {
  "name": "Vivado Slim Dev",
- //"build": { "dockerfile": "Dockerfile" },
+ // "build": { "dockerfile": "Dockerfile" },
  "image": "gitlab.cs.pub.ro:5050/ac/ac-public/vivado-slim:1.0.0",
  "runArgs": [
  "--rm",
  "--privileged"
  ],
- //"appPort": [3121, 60001, 3042],
+ // "appPort": "2222:22",
  "mounts": ["type=bind,source=/dev,target=/dev"],
  //"otherPortsAttributes": {"requireLocalPort": "true", "elevateIfNeeded" : "true"},
+ // "postStartCommand": "/usr/local/sbin/sshd",
  "customizations": {
  "vscode": {
  "extensions": [

.devcontainer/entrypoint.sh

@@ -0,0 +1,3 @@
+#!/bin/bash
+/usr/local/sbin/sshd
+/bin/bash -l

.devcontainer/sshd_config

@@ -0,0 +1,116 @@
+# $OpenBSD: sshd_config,v 1.104 2021/07/02 05:11:21 dtucker Exp $
+
+# This is the sshd server system-wide configuration file. See
+# sshd_config(5) for more information.
+
+# This sshd was compiled with PATH=/usr/bin:/bin:/usr/sbin:/sbin
+
+# The strategy used for options in the default sshd_config shipped with
+# OpenSSH is to specify options with their default value where
+# possible, but leave them commented. Uncommented options override the
+# default value.
+
+#Port 22
+#AddressFamily any
+#ListenAddress 0.0.0.0
+#ListenAddress ::
+
+#HostKey /etc/ssh/ssh_host_rsa_key
+#HostKey /etc/ssh/ssh_host_ecdsa_key
+#HostKey /etc/ssh/ssh_host_ed25519_key
+
+# Ciphers and keying
+#RekeyLimit default none
+
+# Logging
+#SyslogFacility AUTH
+#LogLevel INFO
+
+# Authentication:
+
+#LoginGraceTime 2m
+PermitRootLogin yes 
+#StrictModes yes
+#MaxAuthTries 6
+#MaxSessions 10
+
+#PubkeyAuthentication yes
+
+# The default is to check both .ssh/authorized_keys and .ssh/authorized_keys2
+# but this is overridden so installations will only check .ssh/authorized_keys
+AuthorizedKeysFile .ssh/authorized_keys
+
+#AuthorizedPrincipalsFile none
+
+#AuthorizedKeysCommand none
+#AuthorizedKeysCommandUser nobody
+
+# For this to work you will also need host keys in /etc/ssh/ssh_known_hosts
+#HostbasedAuthentication no
+# Change to yes if you don't trust ~/.ssh/known_hosts for
+# HostbasedAuthentication
+#IgnoreUserKnownHosts no
+# Don't read the user's ~/.rhosts and ~/.shosts files
+#IgnoreRhosts yes
+
+# To disable tunneled clear text passwords, change to no here!
+#PasswordAuthentication yes
+PermitEmptyPasswords yes 
+XAuthLocation /usr/bin/xauth
+# Change to no to disable s/key passwords
+#KbdInteractiveAuthentication yes
+
+# Kerberos options
+#KerberosAuthentication no
+#KerberosOrLocalPasswd yes
+#KerberosTicketCleanup yes
+#KerberosGetAFSToken no
+
+# GSSAPI options
+#GSSAPIAuthentication no
+#GSSAPICleanupCredentials yes
+
+# Set this to 'yes' to enable PAM authentication, account processing,
+# and session processing. If this is enabled, PAM authentication will
+# be allowed through the KbdInteractiveAuthentication and
+# PasswordAuthentication. Depending on your PAM configuration,
+# PAM authentication via KbdInteractiveAuthentication may bypass
+# the setting of "PermitRootLogin prohibit-password".
+# If you just want the PAM account and session checks to run without
+# PAM authentication, then enable this but set PasswordAuthentication
+# and KbdInteractiveAuthentication to 'no'.
+#UsePAM no
+
+#AllowAgentForwarding yes
+#AllowTcpForwarding yes
+#GatewayPorts no
+X11Forwarding yes 
+X11DisplayOffset 10
+X11UseLocalhost yes 
+#PermitTTY yes
+#PrintMotd yes
+#PrintLastLog yes
+#TCPKeepAlive yes
+#PermitUserEnvironment no
+#Compression delayed
+#ClientAliveInterval 0
+#ClientAliveCountMax 3
+#UseDNS no
+#PidFile /var/run/sshd.pid
+#MaxStartups 10:30:100
+#PermitTunnel no
+#ChrootDirectory none
+#VersionAddendum none
+
+# no default banner path
+#Banner none
+
+# override default of no subsystems
+Subsystem sftp /usr/libexec/sftp-server
+
+# Example of overriding settings on a per-user basis
+#Match User anoncvs
+# X11Forwarding no
+# AllowTcpForwarding no
+# PermitTTY no
+# ForceCommand cvs server

chapters/guides/docker/linux/README.md

@@ -1,6 +1,12 @@
 # Utilizare imagine docker Linux
 
 ## Cerințe necesare
+1. Sa aveti VSCode instalat
+2. Sa aveti un Desktop Environment sau un Window manager ce ruleaza cu X Server.
+3. Sa aveti Docker CE instalat (Atentie, nu docker desktop! O sa trebuiasca privileged execution pentru a forwarda folderul /dev iar acesta face acest lucru foarte enervant si dificil)
+ - [Ubuntu/Fedora](https://docs.docker.com/engine/install/)
+ - Arch: ```sudo pacman -S docker```
+ * Daca aveti deja docker desktop instalat de pe AUR o sa va apara conflicte. Va apar frumos acolo pachetele conflictuale, e alegerea voastra what comes next.
 
 ## Rulare
 
@@ -31,3 +37,68 @@ docker run --rm -it -v /dev:/dev gitlab.cs.pub.ro:5050/ac/ac-public/vivado-slim:
 ```bash
 vivado
 ```
+
+## Troubleshooting
+### Primesc eroare cand scriu in shell ```vivado```/nu apare GUI-ul
+Inainte de a rula urmatoarele solutii, **asigurati-va inainte ca .devcontainer/{sshd_config,Dockerfile,devcontainer.json} respecta cerintele de securitate impuse de voi**. Urmatoarea metoda o sa expuna un port la ssh pe un container privilegiat neparolat care are expus /dev-ul vostru. Asigurati-va ca nu exista posibilitatea ca o masina remote sa se poata conecta la acel port al vostru, sau modificati sshd_config-ul astfel incat sa respecte cerintele de securitate, sau schimbati parola de root (in dockerfile)
+#### Devcontainer fara GUI
+Va trebui sa editati devcontainer.json (aveti comentate deja liniile necesare, decomentati image) ca sa va apara in felul acesta:
+```json
+{
+ "name": "Vivado Slim Dev",
+ "build": { "dockerfile": "Dockerfile" },
+ // "image": "gitlab.cs.pub.ro:5050/ac/ac-public/vivado-slim:1.0.0",
+ "runArgs": [
+ "--rm",
+ "--privileged"
+ ],
+ "appPort": "2222:22",
+ "mounts": ["type=bind,source=/dev,target=/dev"],
+ //"otherPortsAttributes": {"requireLocalPort": "true", "elevateIfNeeded" : "true"},
+ "postStartCommand": "/usr/local/sbin/sshd",
+ "customizations": {
+ "vscode": {
+ "extensions": [
+ "mshr-h.veriloghdl"
+ ]
+ }
+ }
+}
+```
+Dupa apasati ```Ctrl+Shift+P``` si apasati pe ```Dev Containers: Rebuild and Reopen in Container```.
+
+Pentru a putea accesa gui-ul deschideti un terminal (nu acela de pe vscode) si scrieti ```ssh -XY -p 2222 root@localhost```. Nu va trebui sa introduceti nicio parola. Puteti modifica portul cu ce doriti voi atata timp cat modificati acest lucru si in devcontainer.json la appPort.
+
+#### Setup manual de docker fara GUI
+In radacina proiectului computer-architecture executati
+```
+cd .devcontainer
+docker build -t vivado-slim-sshx .
+cd ..
+docker run -it -v /dev:/dev -p 2222:22 -v $PWD:/workspaces/computer-architecture vivado-slim-sshx
+```
+### Am wayland. Ce fac?
+Va trebui sa faci [pasul asta](#primesc-eroare-cand-scriu-in-shell-vivadonu-apare-gui-ul).
+
+Exista 2 optiuni rapide:
+1. Instaleaza Xwayland si urmeaza setup-ul/configurarea pentru DE-ul/WM-ul tau
+2. Instaleaxa Xephyr si foloseste comanda aceasta: ```Xephyr -br -ac -noreset -screen 1920x1080 :1```. Inlocuieste 1920x1080 cu rezolutia folosita de tine, o sa se deschida o fereastra. Dupa scrii ```DISPLAY=:1 ssh -X -p 2222 root@localhost```. Gui-ul de la vivado va aparea in fereastra de tocmai s-a deschis
+
+Mai multe detalii [aici](https://www.dbts-analytics.com/notesxfwdgb.html)
+
+### Am ecran alb cand deschid cu wayland
+scrie in shell inainte sa executi vivado ```export _JAVA_AWT_WM_NONREPARENTING=1```. Sau decomenteaza linia din Dockerfile care da echo la aceasta linie in .bashrc
+
+### Stuck la deschiderea hardware managerului
+In terminalul din vscode scrie ```hw_server```, daca o sa functioneze o sa apare cv gen
+```
+****** Xilinx hw_server v2022.1
+ **** Build date : Apr 18 2022 at 16:10:30
+ ** Copyright 1986-2022 Xilinx, Inc. All Rights Reserved.
+
+INFO: hw_server application started
+INFO: Use Ctrl-C to exit hw_server application
+
+INFO: To connect to this hw_server instance use url: TCP:ba86b6047b8c:3121
+```
+Copiati ce este intre TCP: si :3121 si folositi-l ca 'url' la conexiune remote