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142 lines
4.8 KiB
Bash
Executable file
142 lines
4.8 KiB
Bash
Executable file
#!/bin/bash
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# Higher-level purpose explained at the bottom of:
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# https://github.com/iiab/iiab/blob/master/vars/default_vars.yml
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# 2020-10-27: Most of the 10 variables require a command[*] to be run to
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# establish the var's value. WE DISPLAY ALL ERRORS / DIAGNOSTICS AND CONTINUE.
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#
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# [*] DOESN'T MATTER WHAT COMMAND: so long as it fails with Return Code != 0
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# If statements then use that RC to force the var to these default values...
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STAGE=0
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OS="none"
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VERSION_ID="none" # This var's combined with the above, before being output
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IIAB_BRANCH="none"
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IIAB_COMMIT="none"
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#XO_MODEL="none"
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RPI_MODEL="none"
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ANSIBLE_VERSION="none"
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DHCPCD="none" # The last 3 conditioned on string output not RC. SEE BELOW.
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NETWORK_MANAGER="none"
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SYSTEMD_NETWORKD="none"
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# STAGE variable is for ./iiab-install which runs Ansible with iiab-stages.yml
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# - fresh installs start at STAGE 0
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# - interrupted installs record the last completed STAGE (1-9)
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#
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# We initialize it to '0' (zero) to cover the following 2 possibs: (1) iiab.env
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# doesn't exist, or (2) iiab.env exists but fails to set STAGE=<something>
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source /etc/iiab/iiab.env || true # STAGE var auto-set, so no "if" required.
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# /etc/lsb-release could also be grep'd. But /etc/upstream-release/lsb-release
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# on Linux Mint 20 caused grep of /etc/*elease to fail (on directory not file)
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if tmp=$(grep ^ID= /etc/os-release); then
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OS=$(echo "$tmp" | cut -d= -f2)
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OS=${OS//\"/} # Remove all '"'
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fi
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if [ -f /etc/rpi-issue ]; then
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OS="raspbian" # For 64-bit Raspberry Pi OS which contains "ID=debian" as
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fi # of 2020: https://github.com/raspberrypi/Raspberry-Pi-OS-64bit/issues/6
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if tmp=$(grep ^VERSION_ID= /etc/os-release); then
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VERSION_ID=$(echo "$tmp" | cut -d= -f2)
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# https://gnu.org/software/bash/manual/bash.html#Shell-Parameter-Expansion
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VERSION_ID=${VERSION_ID//\"/} # Remove all '"'
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[[ $OS == "ubuntu" ]] && # e.g. '22.04' -> '2204'
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VERSION_ID=${VERSION_ID//\./} # Remove all '.'
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[[ $OS == "linuxmint" ]] && # e.g. '20.2' -> '20'
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VERSION_ID=${VERSION_ID%%.*} # Remove all '.' & stuff to the right
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fi
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OS_VER="$OS-$VERSION_ID"
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# Previously supported Linux distributions / versions:
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#"fedora-18" | \
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#"fedora-22" | \
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#"debian-8" | \
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#"debian-9" | \
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#"debian-10" | \
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#"ubuntu-16" | \
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#"ubuntu-17" | \
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#"ubuntu-18" | \
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#"ubuntu-19" | \
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#"centos-7" | \
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#"raspbian-8" | \
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#"raspbian-9" | \
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#"raspbian-10" | \
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# 2021-09-27: With Debian 12 (Bookworm) pre-releases, please manually add
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# this line to its /etc/os-release before installing IIAB: VERSION_ID="12"
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case $OS_VER in
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"debian-11" | \
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"debian-12" | \
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"ubuntu-2004" | \
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"ubuntu-2104" | \
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"ubuntu-2110" | \
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"ubuntu-2204" | \
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"linuxmint-20" | \
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"linuxmint-21" | \
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"raspbian-11")
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;;
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*) OS_VER="OS Not Supported -- Plz Read: https://github.com/iiab/iiab/wiki/IIAB-Platforms"
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;;
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esac
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# These next 2 help indicate what version of IIAB
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tmp=$(git rev-parse --abbrev-ref HEAD) &&
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IIAB_BRANCH=$tmp
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tmp=$(git rev-parse --verify HEAD) &&
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IIAB_COMMIT=$tmp
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#tmp=$(cat /proc/device-tree/mfg-data/MN) &&
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# XO_MODEL=$tmp
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tmp=$(cat /proc/device-tree/model) &&
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RPI_MODEL=$tmp
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tmp=$(ansible --version) &&
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ANSIBLE_VERSION=$(echo "$tmp" | head -1 | cut -f 2- -d " ")
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# Above works with 'ansible [core 2.11.0rc2]' -- these old ways do not:
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#ANSIBLE_VERSION=$(echo "$tmp" | head -1 | awk '{print $2}')
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#ANSIBLE_VERSION=$(echo "$tmp" | head -1 | sed -e 's/.* //')
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# THE LAST 3 BELOW ARE DIFFERENT as "systemctl is-enabled" unhelpfully returns
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# the same error code (i.e. 1) REGARDLESS whether the service is (A) disabled
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# or (B) doesn't exist. SO WE TEST THE STRING OUTPUT INSTEAD OF THE RETURN CODE
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tmp=$(systemctl is-enabled dhcpcd)
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[[ $tmp != "" ]] &&
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DHCPCD=$tmp
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#[[ $tmp ]] && DHCPCD=$tmp # Short Ain't Sweet (less understandable)
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# is_redhat uses "NetworkManager". Debian 7 & Ubuntu 14.10 required
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# "network-manager" (prior to 2015/systemd). Ubuntu 20.10 dropped the
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# legacy symlink from "network-manager.service" to "NetworkManager.service"
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tmp=$(systemctl is-enabled NetworkManager)
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[[ $tmp != "" ]] &&
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NETWORK_MANAGER=$tmp
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tmp=$(systemctl is-enabled systemd-networkd)
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[[ $tmp != "" ]] &&
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SYSTEMD_NETWORKD=$tmp
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# https://en.wikipedia.org/wiki/Here_document
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cat <<EOF
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{"stage" : "$STAGE",
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"dhcpcd" : "$DHCPCD",
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"network_manager" : "$NETWORK_MANAGER",
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"systemd_networkd" : "$SYSTEMD_NETWORKD",
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"iiab_branch" : "$IIAB_BRANCH",
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"iiab_commit" : "$IIAB_COMMIT",
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"rpi_model" : "$RPI_MODEL",
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"ansible_version" : "$ANSIBLE_VERSION",
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"os" : "$OS",
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"os_ver" : "$OS_VER"}
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EOF
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#"xo_model" : "$XO_MODEL",
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