Feature/callbacks (#2678)

* wip

* initialize callbacks

* wip

* smtp

* list_service_interfaces

* wip

* wip

* fix domains

* fix hostname handling in NetService

* misc fixes

* getInstalledPackages

* misc fixes

* publish v6 lib

* refactor service effects

* fix import

* fix container runtime

* fix tests

* apply suggestions from review

core/build-containerbox.sh

@@ -0,0 +1,42 @@
+#!/bin/bash
+
+cd "$(dirname "${BASH_SOURCE[0]}")"
+
+set -e
+shopt -s expand_aliases
+
+if [ -z "$ARCH" ]; then
+	ARCH=$(uname -m)
+fi
+
+USE_TTY=
+if tty -s; then
+	USE_TTY="-it"
+fi
+
+cd ..
+FEATURES="$(echo $ENVIRONMENT | sed 's/-/,/g')"
+RUSTFLAGS=""
+
+if [[ "${ENVIRONMENT}" =~ (^|-)unstable($|-) ]]; then
+	RUSTFLAGS="--cfg tokio_unstable"
+fi
+
+alias 'rust-musl-builder'='docker run $USE_TTY --rm -e "RUSTFLAGS=$RUSTFLAGS" -v "$HOME/.cargo/registry":/root/.cargo/registry -v "$HOME/.cargo/git":/root/.cargo/git -v "$(pwd)":/home/rust/src -w /home/rust/src -P messense/rust-musl-cross:$ARCH-musl'
+
+set +e
+fail=
+echo "FEATURES=\"$FEATURES\""
+echo "RUSTFLAGS=\"$RUSTFLAGS\""
+if ! rust-musl-builder sh -c "(cd core && cargo build --release --no-default-features --features container-runtime,$FEATURES --locked --bin containerbox --target=$ARCH-unknown-linux-musl)"; then 
+	fail=true
+fi
+set -e
+cd core
+
+sudo chown -R $USER target
+sudo chown -R $USER ~/.cargo
+
+if [ -n "$fail" ]; then
+	exit 1
+fi