Fix/build deps (#527)

* feat: Add script to install build requirements for Ubuntu

doc/install.md is quite out-of-date and does not align with
what's happening in .github/workflows/build.yml

Changes
  - Add build-essential (for make and friends)
  - Add skopeo/umoci which are needed during build and test
  - Use Ubuntu's golang PPA (instead of snap); Jammy's golang-go is
    1.18 and current go.mod requires 1.20
  - Add in the go module prep and docker clone

Now, install.md says to just run:

sudo ./install-build-deps.sh
make stacker

Note: the Fedora steps are equally out of date; that'll need another
PR.

Signed-off-by: Ryan Harper <rharper@woxford.com>

* build: Change build workflow to use install-deps script

Signed-off-by: Ryan Harper <rharper@woxford.com>

---------

Signed-off-by: Ryan Harper <rharper@woxford.com>

.github/workflows/build.yaml

@@ -63,12 +63,7 @@ jobs:
           cat "$GITHUB_ENV"
       - name: install dependencies
         run: |
-          sudo add-apt-repository -y ppa:project-machine/squashfuse
-          sudo apt-get update
-          sudo apt-get install -yy lxc-utils lxc-dev libacl1-dev jq libcap-dev libseccomp-dev libpam-dev bats parallel libzstd-dev
-          sudo apt-get install -yy autoconf automake make autogen autoconf libtool binutils git squashfs-tools libcryptsetup-dev libdevmapper-dev cryptsetup-bin squashfuse
-          GO111MODULE=off go get github.com/opencontainers/umoci/cmd/umoci
-          make download-tools
+          ./install-build-deps.sh
           echo "running kernel is: $(uname -a)"
       - name: docker-clone
         run: |

doc/install.md

@@ -2,11 +2,11 @@
 
 ### Go Dependency
 
-Stacker requires at least go 1.11.
+Stacker requires at least go 1.20.
 
-#### Ubuntu 20.04
+#### Ubuntu 22.04
 
-On Ubuntu 20.04 you can install Go using the instructions at:
+On Ubuntu 22.04 you can install Go using the instructions at:
 https://github.com/golang/go/wiki/Ubuntu
 
 #### Fedora 31
@@ -26,24 +26,20 @@ https://golang.org/doc/install#install
 
 ### Other Dependencies
 
-#### **Ubuntu 20.04**
+The other build dependencies can be satisfied by running:
 
-The other build dependencies can be satisfied with the following command and
-packages:
+#### **Ubuntu 22.04**
 
-    sudo apt install lxc-dev libacl1-dev libgpgme-dev libcap-dev libseccomp-dev build-essential
-    sudo apt install libpam0g-dev libselinux-dev libssl-dev libzstd-dev libcryptsetup-dev libdevmapper-dev
 
-#### **Ubuntu 22.04**
+    This script will install the current library and build-time depedencies.
+    Once installed it will prepare the system for build by fetching golang
+    tools, downloading go modules and preparing a mirror of remote OCI images.
 
-    sudo apt install lxc-dev libacl1-dev libgpgme-dev libcap-dev libseccomp-dev build-essential
-    sudo apt install libpam0g-dev libselinux-dev libssl-dev libzstd-dev libcryptsetup-dev libdevmapper-dev cryptsetup-bin pkg-config
 
+    sudo ./install-build-deps.sh
 
 **To run `make check` you will also need:**
 
-    sudo apt install bats jq tree curl squashfs-tools
-
 **umoci** - https://github.com/opencontainers/umoci
 
 Since the path **/usr/local** is owned by root, when you reach the step to run **make install**, you need to run it as **sudo**.
@@ -67,4 +63,4 @@ packages:
 ### Building the Stacker Binary
 
 Finally, once you have the build dependencies, stacker can be built with a
-simple `make`. The stacker binary will be output as `./stacker`.
+simple `make stacker`. The stacker binary will be output as `./stacker`.

install-build-deps.sh

@@ -0,0 +1,68 @@
+#!/bin/bash
+set -o pipefail
+set -o errexit
+
+installdeps_fedora() {
+        sudo dnf install \
+        bats \
+        jq \
+        lxc-devel \
+        libcap-devel \
+        libacl-devel
+    if ! command -v go 2>/dev/null; then
+        sudo dnf install golang
+        go version
+    fi
+}
+
+installdeps_ubuntu() {
+    sudo add-apt-repository -y ppa:project-machine/squashfuse
+    sudo apt -yy install \
+            bats \
+            build-essential \
+            cryptsetup-bin \
+            jq \
+            libacl1-dev \
+            libcap-dev \
+            libcryptsetup-dev \
+            libdevmapper-dev \
+            libpam0g-dev \
+            libseccomp-dev \
+            libselinux1-dev \
+            libssl-dev \
+            libzstd-dev \
+            lxc-dev \
+            lxc-utils \
+            parallel \
+            pkg-config \
+            skopeo \
+            squashfs-tools \
+            squashfuse
+    if ! command -v go 2>/dev/null; then
+        sudo apt -yy install golang-go
+        go version
+    fi
+}
+
+installdeps_golang() {
+    go version
+    GO111MODULE=off go get github.com/opencontainers/umoci/cmd/umoci
+    make download-tools
+    make docker-clone
+    make go-download
+}
+
+. /etc/os-release
+
+# install platform deps
+case $ID_LIKE in
+    debian|ubuntu) installdeps_ubuntu;;
+    redhat|fedora) installdeps_fedora;;
+    *)
+        echo "Unknown os ID_LIKE value $ID_LIKE"
+        exit 1
+        ;;
+esac
+
+# install golang deps
+installdeps_golang || exit 1