64 lines
1.6 KiB
Bash
Executable File
64 lines
1.6 KiB
Bash
Executable File
#!/usr/bin/env bash
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log_msg() {
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echo -e "[ ${HOSTNAME} ] [ $(date -u +"%Y-%m-%dT%H:%M:%SZ") ] $*" >&2;
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}
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log_msg "Installing nomad";
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sudo apt-get update;
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sudo apt-get install --yes hashicorp-nomad;
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log_msg "nomad installed successfully. Version:";
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nomad --version;
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log_msg "Creating directories";
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if [[ ! -d "/etc/nomad" ]]; then
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sudo mkdir /etc/nomad;
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sudo chown root:root /etc/nomad;
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fi
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if [[ ! -d "/srv/nomad" ]]; then
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sudo mkdir /srv/nomad;
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sudo chown root:root /srv/nomad;
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sudo chmod 0750 /srv/nomad;
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fi
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check_cgroups_memory() {
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log_msg "Checking memory cgroups";
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cgroups_enabled="$(awk '/memory/ { print $2 }' < /proc/cgroups)";
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if [[ "${cgroups_enabled}" -ne 0 ]]; then
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log_msg "memory cgroups already enabled";
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return 0;
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fi
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filepath_cmdline="/boot/cmdline.txt";
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if [[ ! -e "${filepath_cmdline}" ]]; then
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filepath_cmdline="/boot/firmware/cmdline.txt";
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fi
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if [[ ! -e "${filepath_cmdline}" ]]; then
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log_msg "Failed to find cmdline.txt; can't check for cgroups";
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return 1;
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fi
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if grep -q cgroup_enable=memory /boot/cmdline.txt; then
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log_msg "memory cgroups already present in cmdline.txt, a reboot is required to apply the update";
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return 0;
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fi
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log_msg "memory cgroups not present in cmdline.txt, enabling....";
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(tr -d '\n' <"${filepath_cmdline}" && echo " cgroup_enable=memory cgroup_memory=1") | sudo tee "${filepath_cmdline}.new";
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sudo mv "${filepath_cmdline}" "${filepath_cmdline}.old-$(date +"%Y-%m-%d")";
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sudo mv "${filepath_cmdline}.new" "${filepath_cmdline}";
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log_msg "New contents of cmdline.txt:";
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cat "${filepath_cmdline}";
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log_msg "A reboot is required to apply the changes.";
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}
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check_cgroups_memory;
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