Add "container setup" command for building container with configuration

1 files changed, 85 insertions, 0 deletions

diff --git a/nix-script-container-setup.sh b/nix-script-container-setup.sh
new file mode 100755
index 0000000..7c0a6d9
--- /dev/null
+++ b/nix-script-container-setup.sh
@@ -0,0 +1,85 @@
+#!/usr/bin/env
+
+source $(dirname ${BASH_SOURCE[0]})/nix-utils.sh
+
+usage() {
+    cat <<EOS >&2
+    $(help_synopsis "container" "setup [-h] -n <container name> [-e] [-d <dir>] [-t <template>]")
+
+    -n <name>     | Container name
+    -e            | Do not edit the configuration.nix of the container
+    -t <template> | Use this configuration template
+    -d <dir>      | Use this configuration template dir, default: $RC_CONTAINER_CONF_TEMPLATE_DIR
+    -h            | Show this help and exit
+
+$(help_end)
+EOS
+}
+
+DO_EDIT=0 # 0 == true
+TEMPLATE=
+TEMPLATE_DIR=$RC_CONTAINER_CONF_TEMPLATE_DIR
+
+while getopts "n:et:d:h" OPTION
+do
+    case $OPTION in
+        n)
+            NAME=$OPTARG
+            dbg "NAME = $NAME"
+            ;;
+
+        e)
+            DO_EDIT=1 # 1 == false
+            dbg "DO_NOT_EDIT = $DO_NOT_EDIT"
+            ;;
+
+        t)
+            TEMPLATE=$OPTARG
+            dbg "TEMPLATE = $TEMPLATE"
+            ;;
+
+        d)
+            TEMPLATE_DIR=$OPTARG
+            dbg "TEMPLATE_DIR = $TEMPLATE_DIR"
+            ;;
+
+        h)
+            usage
+            exit 0
+            ;;
+        *)
+            ;;
+    esac
+done
+
+[[ -z "$NAME" ]] && stderr "No container name given" && exit 1
+[[ -z "$TEMPLATE_DIR" && ! -z "$TEMPLATE" ]] && \
+    stderr "No container config template dir path given" && exit 1
+
+stdout "Creating container '$NAME'"
+explain sudo nixos-container create $NAME
+stdout "Creating container '$NAME': done"
+
+if [[ ! -z "$TEMPLATE_DIR" && ! -z "$TEMPLATE" ]]
+then
+    stdout "Looking for template in template dir"
+
+    __template__="${TEMPLATE_DIR}/${TEMPLATE}.template.nix"
+    if [[ -e "$__template__" ]]
+    then
+        explain sudo cp $__template__ $(container_conf_path $NAME)
+    else
+        stderr "'$__template__' does not exist. Exiting"
+        exit 1
+    fi
+else
+    stderr "No template dir, no template specified."
+    stderr "Won't change configuration.nix automatically"
+fi
+
+[[ $DO_EDIT ]] && explain sudo $EDITOR $(container_conf_path $NAME)
+
+stdout "Starting container '$NAME'"
+explain sudo nixos-container start $NAME
+stdout "Starting container '$NAME': done"
+