forked from ungleich-public/cdist
Refactor __consul_agent type to support distribution packages
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parent
c09165d122
commit
70200cd28f
3 changed files with 225 additions and 152 deletions
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@ -116,6 +116,9 @@ verify-incoming
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verify-outgoing
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enforce the use of TLS and verify the peers authenticity on outgoing connections
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use-distribution-package
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uses distribution package instead of upstream binary
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EXAMPLES
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--------
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@ -2,6 +2,7 @@
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#
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# 2015 Steven Armstrong (steven-cdist at armstrong.cc)
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# 2015-2019 Nico Schottelius (nico-cdist at schottelius.org)
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# 2019 Timothée Floure (timothee.floure at ungleich.ch)
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#
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# This file is part of cdist.
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#
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@ -19,133 +20,64 @@
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# along with cdist. If not, see <http://www.gnu.org/licenses/>.
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#
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os=$(cat "$__global/explorer/os")
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case "$os" in
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alpine|scientific|centos|debian|devuan|redhat|ubuntu)
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# whitelist safeguard
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:
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;;
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*)
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echo "Your operating system ($os) is currently not supported by this type (${__type##*/})." >&2
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echo "Please contribute an implementation for it if you can." >&2
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exit 1
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;;
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esac
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###
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# Type parameters.
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state="$(cat "$__object/parameter/state")"
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user="$(cat "$__object/parameter/user")"
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group="$(cat "$__object/parameter/group")"
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release=$(cat "$__global/explorer/lsb_release")
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if [ -f "$__object/parameter/use-distribution-package" ]; then
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use_distribution_package=1
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fi
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###
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# Those are default that might be overriden by os-specific logic.
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data_dir="/var/lib/consul"
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conf_dir="/etc/consul/conf.d"
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conf_file="config.json"
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tls_dir="$conf_dir/tls"
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# FIXME: there has got to be a better way to handle the dependencies in this case
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case "$state" in
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present)
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__group "$group" --system --state "$state"
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require="__group/$group" \
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__user "$user" --system --gid "$group" \
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--home "$data_dir" --state "$state"
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export require="__user/consul"
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;;
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absent)
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echo "Sorry, state=absent currently not supported :-(" >&2
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###
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# Sane deployment, based on distribution package when available.
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distribution_setup () {
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case "$os" in
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debian)
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# consul is only available starting Debian 10 (buster).
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# See https://packages.debian.org/buster/consul
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if [ $release -lt 10 ]; then
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echo "Consul is not available for your debian release." >&2
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echo "Please use the 'manual' (i.e. non-package) installation or \
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upgrade the target system." >&2
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exit 1
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require="$__object_name" \
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__user "$user" --system --gid "$group" --state "$state"
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require="__user/$user" \
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__group "$group" --system --state "$state"
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;;
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esac
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__directory /etc/consul \
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--owner root --group "$group" --mode 750 --state "$state"
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require="__directory/etc/consul" \
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__directory "$conf_dir" \
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--owner root --group "$group" --mode 750 --state "$state"
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if [ -f "$__object/parameter/ca-file-source" ] || [ -f "$__object/parameter/cert-file-source" ] || [ -f "$__object/parameter/key-file-source" ]; then
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# create directory for ssl certs
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require="__directory/etc/consul" \
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__directory /etc/consul/ssl \
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--owner root --group "$group" --mode 750 --state "$state"
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fi
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__directory "$data_dir" \
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--owner "$user" --group "$group" --mode 770 --state "$state"
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# Generate json config file
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(
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echo "{"
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# parameters we define ourself
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printf ' "data_dir": "%s"\n' "$data_dir"
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cd "$__object/parameter/"
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for param in *; do
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case "$param" in
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state|user|group|json-config) continue ;;
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ca-file-source|cert-file-source|key-file-source)
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source="$(cat "$__object/parameter/$param")"
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destination="/etc/consul/ssl/${source##*/}"
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require="__directory/etc/consul/ssl" \
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__file "$destination" \
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--owner root --group consul --mode 640 \
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--source "$source" \
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--state "$state"
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key="$(echo "${param%-*}" | tr '-' '_')"
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printf ' ,"%s": "%s"\n' "$key" "$destination"
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;;
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disable-remote-exec|disable-update-check|leave-on-terminate|rejoin-after-leave|server|enable-syslog|verify-incoming|verify-outgoing)
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# handle boolean parameters
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key="$(echo "$param" | tr '-' '_')"
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printf ' ,"%s": true\n' "$key"
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;;
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retry-join)
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# join multiple parameters into json array
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retry_join="$(awk '{printf "\""$1"\","}' "$__object/parameter/retry-join")"
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# remove trailing ,
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printf ' ,"retry_join": [%s]\n' "${retry_join%*,}"
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;;
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retry-join-wan)
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# join multiple parameters into json array over wan
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retry_join_wan="$(awk '{printf "\""$1"\","}' "$__object/parameter/retry-join-wan")"
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# remove trailing ,
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printf ' ,"retry_join_wan": [%s]\n' "${retry_join_wan%*,}"
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;;
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bootstrap-expect)
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# integer key=value parameters
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key="$(echo "$param" | tr '-' '_')"
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printf ' ,"%s": %s\n' "$key" "$(cat "$__object/parameter/$param")"
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# Override previously defined environment to match debian packaging.
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conf_dir='/etc/consul.d'
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user='consul'
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grou='consul'
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;;
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*)
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# string key=value parameters
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key="$(echo "$param" | tr '-' '_')"
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printf ' ,"%s": "%s"\n' "$key" "$(cat "$__object/parameter/$param")"
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echo "Your operating system ($os) is currently not supported with the \
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--use-distribution-package flag (${__type##*/})." >&2
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echo "Please use non-package installation or contribute an \
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implementation for if you can." >&2
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exit 1
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;;
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esac
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done
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if [ -f "$__object/parameter/json-config" ]; then
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json_config="$(cat "$__object/parameter/json-config")"
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if [ "$json_config" = "-" ]; then
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json_config="$__object/stdin"
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fi
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# remove leading and trailing whitespace and commas from first and last line
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# indent each line with 3 spaces for consistency
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json=$(sed -e 's/^[ \t]*/ /' -e '1s/^[ \t,]*//' -e '$s/[ \t,]*$//' "$json_config")
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printf ' ,%s\n' "$json"
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fi
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echo "}"
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) | \
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require="__directory${conf_dir}" \
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__config_file "${conf_dir}/${conf_file}" \
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--owner root --group "$group" --mode 640 \
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--state "$state" \
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--onchange 'service consul status >/dev/null && service consul reload || true' \
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--source -
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# Install consul package.
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__package consul --state $state
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export config_deployment_requires="__package/consul"
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}
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###
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# LEGACY manual deployment, kept for compatibility reasons.
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init_sysvinit()
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{
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@ -179,6 +111,41 @@ init_upstart()
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require="__file/etc/init/consul.conf" __start_on_boot consul
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}
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manual_setup () {
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case "$os" in
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alpine|scientific|centos|debian|devuan|redhat|ubuntu)
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# whitelist safeguard
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:
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;;
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*)
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echo "Your operating system ($os) is currently not supported by this \
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type (${__type##*/})." >&2
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echo "Please contribute an implementation for it if you can." >&2
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exit 1
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;;
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esac
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# FIXME: there has got to be a better way to handle the dependencies in this case
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case "$state" in
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present)
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__group "$group" --system --state "$state"
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require="__group/$group" __user "$user" \
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--system --gid "$group" --home "$data_dir" --state "$state"
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;;
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*)
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echo "The $state state is not (yet?) supported by this type." >&2
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exit 1
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;;
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esac
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# Create data directory.
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require="__user/consul"__directory "$data_dir" \
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--owner "$user" --group "$group" --mode 770 --state "$state"
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# Create config directory.
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require="__user/consul" __directory "$conf_dir" \
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--parents --owner root --group "$group" --mode 750 --state "$state"
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# Install init script to start on boot
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case "$os" in
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devuan)
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@ -223,3 +190,105 @@ case "$os" in
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init_upstart
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;;
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esac
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config_deployment_requires="__user/consul __directory/$conf_dir"
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}
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###
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# Trigger requested installation method.
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if [ $use_distribution_package ]; then
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distribution_setup
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else
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manual_setup
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fi
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###
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# Generate and deploy configuration.
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json_configuration=$(
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echo "{"
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# parameters we define ourself
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printf ' "data_dir": "%s"\n' "$data_dir"
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cd "$__object/parameter/"
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for param in *; do
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case "$param" in
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state|user|group|json-config|use-distribution-package) continue ;;
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ca-file-source|cert-file-source|key-file-source)
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source="$(cat "$__object/parameter/$param")"
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destination="/etc/consul/ssl/${source##*/}"
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require="__directory/etc/consul/ssl" \
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__file "$destination" \
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--owner root --group consul --mode 640 \
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--source "$source" \
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--state "$state"
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key="$(echo "${param%-*}" | tr '-' '_')"
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printf ' ,"%s": "%s"\n' "$key" "$destination"
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;;
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disable-remote-exec|disable-update-check|leave-on-terminate\
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|rejoin-after-leave|server|enable-syslog|verify-incoming|verify-outgoing)
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# handle boolean parameters
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key="$(echo "$param" | tr '-' '_')"
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printf ' ,"%s": true\n' "$key"
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;;
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retry-join)
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# join multiple parameters into json array
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retry_join="$(awk '{printf "\""$1"\","}' "$__object/parameter/retry-join")"
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# remove trailing ,
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printf ' ,"retry_join": [%s]\n' "${retry_join%*,}"
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;;
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retry-join-wan)
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# join multiple parameters into json array over wan
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retry_join_wan="$(awk '{printf "\""$1"\","}' "$__object/parameter/retry-join-wan")"
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# remove trailing ,
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printf ' ,"retry_join_wan": [%s]\n' "${retry_join_wan%*,}"
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;;
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bootstrap-expect)
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# integer key=value parameters
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key="$(echo "$param" | tr '-' '_')"
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printf ' ,"%s": %s\n' "$key" "$(cat "$__object/parameter/$param")"
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;;
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*)
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# string key=value parameters
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key="$(echo "$param" | tr '-' '_')"
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printf ' ,"%s": "%s"\n' "$key" "$(cat "$__object/parameter/$param")"
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;;
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esac
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done
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if [ -f "$__object/parameter/json-config" ]; then
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json_config="$(cat "$__object/parameter/json-config")"
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if [ "$json_config" = "-" ]; then
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json_config="$__object/stdin"
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fi
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# remove leading and trailing whitespace and commas from first and last line
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# indent each line with 3 spaces for consistency
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json=$(sed -e 's/^[ \t]*/ /' -e '1s/^[ \t,]*//' -e '$s/[ \t,]*$//' "$json_config")
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printf ' ,%s\n' "$json"
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fi
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echo "}"
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)
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echo "$json_configuration" | require="$config_deployment_requires" \
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__file "$conf_dir/$conf_file" \
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--owner root --group "$group" --mode 640 \
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--state "$state" \
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--source -
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# Set configuration deployment as requirement for service restart.
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restart_requires="__file/$conf_dir/$conf_file"
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###
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# Install TLS certificates.
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if [ -f "$__object/parameter/ca-file-source" ] || \
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[ -f "$__object/parameter/cert-file-source" ] || \
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[ -f "$__object/parameter/key-file-source" ]; then
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requires="__file/$conf_dir/$conf_file" __directory $conf_dir/tls \
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--owner root --group "$group" --mode 750 --state "$state"
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# Append to service restart requirements.
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restart_requires="$restart_requires __directory/$conf_dir/tls"
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fi
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###
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# Restart consul agent after everything else.
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require="$restart_requires" __service consul --action restart
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@ -6,3 +6,4 @@ server
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enable-syslog
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verify-incoming
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verify-outgoing
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use-distribution-package
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