add docker support to developer container (#4)

* devcontainer docker support

* tweaks to docker devcontainer

* final docker/podman compatible devcontainer

.devcontainer/.bashrc

@@ -71,7 +71,9 @@ function parse_git_branch {
 EC_PROJECT=${EC_PROJECT:-container}
 PS1="\[\e[32m\]\$(parse_git_branch)\[\e[m\][\[\e[34m\]\[\e[m\]\W]\$ "
 export PS1="[\[\e[31m\]${EC_PROJECT#'ioc-'}\[\e[m\]]${PS1}"
-source /root/.bash_completions/ibek.sh
+
+# ibek cli completion
+source <(ibek --show-completion bash)
 
 # add user's custom .bashrc_dev_container
 if [ -f ~/.bashrc_dev_container ]; then

.devcontainer/devcontainer.json

@@ -14,6 +14,17 @@
         // provides a name for epics-containers to use in bash prompt etc.
         "EC_PROJECT": "${localWorkspaceFolderBasename}"
     },
+    "features": {
+        "ghcr.io/devcontainers/features/common-utils:2": {
+            "installZsh": false,
+            "installOhMyZsh": false,
+            "installOhMyZshConfig": false,
+            "upgradePackages": false
+        }
+    },
+    // IMPORTANT for this devcontainer to work with docker EC_REMOTE_USER must be
+    // set to vscode. For podman it should be left blank.
+    "remoteUser": "${localEnv:EC_REMOTE_USER}",
     "customizations": {
         "vscode": {
             // Add the IDs of extensions you want installed when the container is created.
@@ -57,11 +68,7 @@
         "source=${localEnv:HOME}/.bashrc_dev_container,target=/root/.bashrc_dev_container,type=bind",
         // provides a place to install any packages you want to have across all your dev containers
         "source=${localEnv:HOME}/.bashprofile_dev_container,target=/root/.bashprofile_dev_container,type=bind",
-        // ensures your git name and email are set correctly
-        "source=${localEnv:HOME}/.gitconfig,target=/root/.gitconfig,type=bind",
         // provides the same command line editing experience as your host
-        "source=${localEnv:HOME}/.inputrc,target=/root/.inputrc,type=bind",
-        // provides the same ssh keys as your host
-        "source=${localEnv:HOME}/.ssh,target=/root/.ssh,type=bind"
+        "source=${localEnv:HOME}/.inputrc,target=/root/.inputrc,type=bind"
     ]
 }

.devcontainer/initializeCommand

@@ -5,8 +5,7 @@ for i in \
     .bash_eternal_history \
     .bashrc_dev_container \
     .bashprofile_dev_container \
-    .inputrc \
-    .gitconfig
+    .inputrc
     do
         if [ ! -f $HOME/$i ] ; then
             touch $HOME/$i;

.devcontainer/postCreateCommand

@@ -1,15 +1,30 @@
 #!/bin/bash
 
-# the IOC is made at build time but the devcontainer mounts over the top of it
-# so we need to regenerate it for devcontainer use
+################################################################################
+# When using docker we will not be root inside the container
+# the following steps are then required
+################################################################################
 
-# get the ioc template, generate makefile and compile.
-# Commented out because compilation failures stop the devcontainer from starting
-# best to let the user do this manually once inside the container
+if [[ $USER != "root" ]] ; then
+    # make sure the non-root user can build iocs and (mounted in) support modules
+    sudo chown -R ${USER}:${USER} /epics/links
+    sudo chown -h ${USER}:${USER} /epics /epics/ioc
 
-# ibek ioc compile
+    # also give non-root user access to the same bash config we use in podman
+    sudo chmod a+rx /root
+    for f in .inputrc .bash_eternal_history .bashrc .bashrc_dev_container; do
+        sudo chmod a+rw /root/$f
+        ln -sf /root/$f $HOME/$f
+    done
+fi
 
-# add user's custom profile
+################################################################################
+# Custom install script for each developer to add whatever they like to
+# all epics-containers devcontainers
+################################################################################
+
+
+# add user's custom profile container creation script
 if [ -f ~/.bashprofile_dev_container ]; then
     . ~/.bashprofile_dev_container
-fi
+fi

.vscode/settings.json

@@ -1,11 +1,3 @@
 {
-    "[python]": {
-        "editor.defaultFormatter": "ms-python.black-formatter"
-    },
-    "workbench.colorCustomizations": {
-        "activityBar.background": "#5B0A2F",
-        "titleBar.activeBackground": "#800E42",
-        "titleBar.activeForeground": "#FFFCFD"
-    },
-    "python.pythonPath": "/venv/bin/python3",
+    "python.defaultInterpreterPath": "/venv/bin/python"
 }