Expand build targets to include Debian11 for release/1.1 (#5574)

- This PR adds Debian 11 as a build target for release/1.1
- It also addresses an issue related to missing packages: matrix-org/synapse#9073 by removing dh-systemd from the installation list. It hasn't been needed since Debian 8.

Testing notes:

- verified build passes and artifacts are created.

builds/misc/packages.yaml

@@ -52,6 +52,19 @@ jobs:
  arch: aarch64
  target.iotedged: edgelet/target/aarch64-unknown-linux-gnu/release
 
+ Debian11-amd64:
+ os: debian11
+ arch: amd64
+ target.iotedged: edgelet/target/release
+ Debian11-arm32v7:
+ os: debian11
+ arch: arm32v7
+ target.iotedged: edgelet/target/armv7-unknown-linux-gnueabihf/release
+ Debian11-aarch64:
+ os: debian11
+ arch: aarch64
+ target.iotedged: edgelet/target/aarch64-unknown-linux-gnu/release
+
  Ubuntu1804-amd64:
  os: ubuntu18.04
  arch: amd64

edgelet/build/linux/package.sh

@@ -118,6 +118,15 @@ case "$PACKAGE_OS" in
  CMAKE_ARGS="$CMAKE_ARGS '-DOPENSSL_DEPENDS_SPEC=libssl1.1'"
  ;;
 
+ 'debian11')
+ DOCKER_IMAGE='debian:11-slim'
+
+ CMAKE_ARGS="$CMAKE_ARGS -DCPACK_GENERATOR=DEB"
+ CMAKE_ARGS="$CMAKE_ARGS '-DCPACK_PACKAGE_VERSION=$VERSION'"
+ CMAKE_ARGS="$CMAKE_ARGS '-DCPACK_DEBIAN_PACKAGE_RELEASE=$REVISION'"
+ CMAKE_ARGS="$CMAKE_ARGS '-DOPENSSL_DEPENDS_SPEC=libssl1.1'"
+ ;;
+
  'ubuntu18.04')
  DOCKER_IMAGE='ubuntu:18.04'
 
@@ -201,7 +210,7 @@ case "$PACKAGE_OS.$PACKAGE_ARCH" in
  apt-get update &&
  apt-get upgrade -y &&
  apt-get install -y --no-install-recommends \
- binutils build-essential ca-certificates curl cmake debhelper dh-systemd file git make \
+ binutils build-essential ca-certificates curl cmake debhelper file git make \
  gcc g++ pkg-config \
  libcurl4-openssl-dev libssl-dev uuid-dev &&
  '
@@ -213,7 +222,7 @@ case "$PACKAGE_OS.$PACKAGE_ARCH" in
  apt-get update &&
  apt-get upgrade -y &&
  apt-get install -y --no-install-recommends \
- binutils build-essential ca-certificates cmake curl debhelper dh-systemd file git make \
+ binutils build-essential ca-certificates cmake curl debhelper file git make \
  gcc g++ \
  gcc-arm-linux-gnueabihf g++-arm-linux-gnueabihf \
  libcurl4-openssl-dev:armhf libssl-dev:armhf uuid-dev:armhf &&
@@ -238,7 +247,7 @@ case "$PACKAGE_OS.$PACKAGE_ARCH" in
  apt-get update &&
  apt-get upgrade -y &&
  apt-get install -y --no-install-recommends \
- binutils build-essential ca-certificates cmake curl debhelper dh-systemd file git make \
+ binutils build-essential ca-certificates cmake curl debhelper file git make \
  gcc g++ \
  gcc-aarch64-linux-gnu g++-aarch64-linux-gnu \
  libcurl4-openssl-dev:arm64 libssl-dev:arm64 uuid-dev:arm64 &&

edgelet/contrib/debian/control

@@ -2,8 +2,7 @@ Source: iotedge
 Section: admin
 Priority: extra
 Maintainer: Azure IoT Edge Devs
-Build-Depends: debhelper (>=9),
- dh-systemd
+Build-Depends: debhelper (>=10)
 Standards-Version: 3.9.6
 Homepage: https:/azure/iotedge
 

edgelet/doc/devguide.md

@@ -13,7 +13,7 @@ There are two options for building the IoT Edge Security Daemon.
 
 Linux packages are built using the `edgelet/build/linux/package.sh` script. Set the following environment variables, then invoke the script:
 
-1. `PACKAGE_OS`: This is the OS on which the resulting packages will be installed. It should be one of `centos7`, `debian9`, `debian10` or `ubuntu18.04`
+1. `PACKAGE_OS`: This is the OS on which the resulting packages will be installed. It should be one of `centos7`, `debian9`, `debian10`, `debian11`, or `ubuntu18.04`
 
 1. `PACKAGE_ARCH`: This is the architecture of the OS on which the resulting packages will be installed. It should be one of `amd64`, `arm32v7` or `aarch64`.
 
@@ -81,7 +81,16 @@ yum install \
  libcurl-devel libuuid-devel openssl-devel
 ```
 
-#### Debian 9-10, Ubuntu 18.04
+#### Debian 9-11
+
+```sh
+apt-get update
+apt-get install \
+ binutils build-essential ca-certificates curl cmake debhelper file git make \
+ gcc g++ pkg-config \
+ libcurl4-openssl-dev libssl-dev uuid-dev
+```
+#### Ubuntu 18.04
 
 ```sh
 apt-get update