Add prometheus, alertmanager, pushgateway configs

Change-Id: I7f146e0207ada58f0723b14d0a625a6bce67ea9f
diff --git a/tests/pillar/prometheus_alertmanager.sls b/tests/pillar/prometheus_alertmanager.sls
new file mode 100644
index 0000000..48a9d5d
--- /dev/null
+++ b/tests/pillar/prometheus_alertmanager.sls
@@ -0,0 +1,36 @@
+prometheus:
+  alertmanager:
+    enabled: true
+    bind:
+      address: 0.0.0.0
+      port: 9093
+    config:
+      global:
+        resolve_timeout: 5m
+      route:
+        group_by: ['alertname', 'region', 'service']
+        group_wait: 60s
+        group_interval: 5m
+        repeat_interval: 3h
+        receiver: HTTP-notification
+      inhibit_rules:
+        - source_match:
+            severity: 'down'
+          target_match:
+            severity: 'critical'
+          equal: ['region', 'service']
+        - source_match:
+            severity: 'down'
+          target_match:
+            severity: 'warning'
+          equal: ['region', 'service']
+        - source_match:
+            severity: 'critical'
+          target_match:
+            severity: 'warning'
+          equal: ['alertname', 'region', 'service']
+      receivers:
+        - name: 'HTTP-notification'
+          webhook_configs:
+            - url: http://127.0.0.1
+              send_resolved: true
diff --git a/tests/pillar/prometheus_pushgateway.sls b/tests/pillar/prometheus_pushgateway.sls
new file mode 100644
index 0000000..7921ba1
--- /dev/null
+++ b/tests/pillar/prometheus_pushgateway.sls
@@ -0,0 +1,3 @@
+prometheus:
+  pushgateway:
+    enabled: true
diff --git a/tests/pillar/prometheus_server.sls b/tests/pillar/prometheus_server.sls
new file mode 100644
index 0000000..c967b8f
--- /dev/null
+++ b/tests/pillar/prometheus_server.sls
@@ -0,0 +1,30 @@
+prometheus:
+  server:
+    enabled: true
+    bind:
+      port: 9090
+      address: 0.0.0.0
+    storage:
+      local:
+        engine: "persisted"
+        retention: "360h"
+        memory_chunks: 1048576
+        max_chunks_to_persist: 524288
+        num_fingerprint_mutexes: 4096
+    alertmanager:
+      notification_queue_capacity: 10000
+    config:
+      global:
+        scrape_interval: "15s"
+        scrape_timeout: "15s"
+        evaluation_interval: "1m"
+        external_labels:
+          region: 'region1'
+    alert:
+      PrometheusTargetDownKubernetesNodes:
+        if: 'up{job="kubernetes-nodes"} != 1'
+        labels:
+          severity: down
+          service: prometheus
+        annotations:
+          summary: 'Prometheus target down'
diff --git a/tests/run_tests.sh b/tests/run_tests.sh
new file mode 100755
index 0000000..3f42101
--- /dev/null
+++ b/tests/run_tests.sh
@@ -0,0 +1,162 @@
+#!/usr/bin/env bash
+
+set -e
+[ -n "$DEBUG" ] && set -x
+
+CURDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+METADATA=${CURDIR}/../metadata.yml
+FORMULA_NAME=$(cat $METADATA | python -c "import sys,yaml; print yaml.load(sys.stdin)['name']")
+
+## Overrideable parameters
+PILLARDIR=${PILLARDIR:-${CURDIR}/pillar}
+BUILDDIR=${BUILDDIR:-${CURDIR}/build}
+VENV_DIR=${VENV_DIR:-${BUILDDIR}/virtualenv}
+DEPSDIR=${BUILDDIR}/deps
+
+SALT_FILE_DIR=${SALT_FILE_DIR:-${BUILDDIR}/file_root}
+SALT_PILLAR_DIR=${SALT_PILLAR_DIR:-${BUILDDIR}/pillar_root}
+SALT_CONFIG_DIR=${SALT_CONFIG_DIR:-${BUILDDIR}/salt}
+SALT_CACHE_DIR=${SALT_CACHE_DIR:-${SALT_CONFIG_DIR}/cache}
+
+SALT_OPTS="${SALT_OPTS} --retcode-passthrough --local -c ${SALT_CONFIG_DIR}"
+
+if [ "x${SALT_VERSION}" != "x" ]; then
+    PIP_SALT_VERSION="==${SALT_VERSION}"
+fi
+
+## Functions
+log_info() {
+    echo "[INFO] $*"
+}
+
+log_err() {
+    echo "[ERROR] $*" >&2
+}
+
+setup_virtualenv() {
+    log_info "Setting up Python virtualenv"
+    virtualenv $VENV_DIR
+    source ${VENV_DIR}/bin/activate
+    pip install salt${PIP_SALT_VERSION}
+}
+
+setup_pillar() {
+    [ ! -d ${SALT_PILLAR_DIR} ] && mkdir -p ${SALT_PILLAR_DIR}
+    echo "base:" > ${SALT_PILLAR_DIR}/top.sls
+    for pillar in ${PILLARDIR}/*; do
+        state_name=$(basename ${pillar%.sls})
+        echo -e "  ${state_name}:\n    - ${state_name}" >> ${SALT_PILLAR_DIR}/top.sls
+    done
+}
+
+setup_salt() {
+    [ ! -d ${SALT_FILE_DIR} ] && mkdir -p ${SALT_FILE_DIR}
+    [ ! -d ${SALT_CONFIG_DIR} ] && mkdir -p ${SALT_CONFIG_DIR}
+    [ ! -d ${SALT_CACHE_DIR} ] && mkdir -p ${SALT_CACHE_DIR}
+
+    echo "base:" > ${SALT_FILE_DIR}/top.sls
+    for pillar in ${PILLARDIR}/*.sls; do
+        state_name=$(basename ${pillar%.sls})
+        echo -e "  ${state_name}:\n    - ${FORMULA_NAME}" >> ${SALT_FILE_DIR}/top.sls
+    done
+
+    cat << EOF > ${SALT_CONFIG_DIR}/minion
+file_client: local
+cachedir: ${SALT_CACHE_DIR}
+verify_env: False
+
+file_roots:
+  base:
+  - ${SALT_FILE_DIR}
+  - ${CURDIR}/..
+  - /usr/share/salt-formulas/env
+
+pillar_roots:
+  base:
+  - ${SALT_PILLAR_DIR}
+  - ${PILLARDIR}
+EOF
+}
+
+fetch_dependency() {
+    dep_name="$(echo $1|cut -d : -f 1)"
+    dep_source="$(echo $1|cut -d : -f 2-)"
+    dep_root="${DEPSDIR}/$(basename $dep_source .git)"
+    dep_metadata="${dep_root}/metadata.yml"
+
+    [ -d /usr/share/salt-formulas/env/${dep_name} ] && log_info "Dependency $dep_name already present in system-wide salt env" && return 0
+    [ -d $dep_root ] && log_info "Dependency $dep_name already fetched" && return 0
+
+    log_info "Fetching dependency $dep_name"
+    [ ! -d ${DEPSDIR} ] && mkdir -p ${DEPSDIR}
+    git clone $dep_source ${DEPSDIR}/$(basename $dep_source .git)
+    ln -s ${dep_root}/${dep_name} ${SALT_FILE_DIR}/${dep_name}
+
+    METADATA="${dep_metadata}" install_dependencies
+}
+
+install_dependencies() {
+    grep -E "^dependencies:" ${METADATA} >/dev/null || return 0
+    (python - | while read dep; do fetch_dependency "$dep"; done) << EOF
+import sys,yaml
+for dep in yaml.load(open('${METADATA}', 'ro'))['dependencies']:
+    print '%s:%s' % (dep["name"], dep["source"])
+EOF
+}
+
+clean() {
+    log_info "Cleaning up ${BUILDDIR}"
+    [ -d ${BUILDDIR} ] && rm -rf ${BUILDDIR} || exit 0
+}
+
+salt_run() {
+    [ -e ${VEN_DIR}/bin/activate ] && source ${VENV_DIR}/bin/activate
+    salt-call ${SALT_OPTS} $*
+}
+
+prepare() {
+    [ -d ${BUILDDIR} ] && mkdir -p ${BUILDDIR}
+
+    which salt-call || setup_virtualenv
+    setup_pillar
+    setup_salt
+    install_dependencies
+}
+
+run() {
+    for pillar in ${PILLARDIR}/*.sls; do
+        state_name=$(basename ${pillar%.sls})
+        salt_run --id=${state_name} state.show_sls ${FORMULA_NAME} || (log_err "Execution of ${FORMULA_NAME}.${state_name} failed"; exit 1)
+    done
+}
+
+_atexit() {
+    RETVAL=$?
+    trap true INT TERM EXIT
+
+    if [ $RETVAL -ne 0 ]; then
+        log_err "Execution failed"
+    else
+        log_info "Execution successful"
+    fi
+    return $RETVAL
+}
+
+## Main
+trap _atexit INT TERM EXIT
+
+case $1 in
+    clean)
+        clean
+        ;;
+    prepare)
+        prepare
+        ;;
+    run)
+        run
+        ;;
+    *)
+        prepare
+        run
+        ;;
+esac