Update vendor `github.com/miekg/dns` to `v1.0.0` release.
* Add dependent vendor `golang.org/x/crypto/ed25519`.
* Add dependent vendor `golang.org/x/crypto/ed25519/internal/edwards25519`.
* Add dependent vendor `golang.org/x/net/bpf`.
* Add dependent vendor `golang.org/x/net/internal/iana`.
* Add dependent vendor `golang.org/x/net/internal/socket`.
* Add dependent vendor `golang.org/x/net/ipv4`.
* Add dependent vendor `golang.org/x/net/ipv6`.

Currently when sending alerts via the go routine within `sendAll`, the value
of `ams` is not passed to the routine, causing it to use the updated value of `ams`.

Example config:

```
alerting:
  alertmanagers:
    - basic_auth:
        username: 'prometheus'
        password: 'test123'
      static_configs:
      - targets:
        - localhost:9094
    - static_configs:
      - targets:
        - localhost:9095
```

In this example alerts sent to `localhost:9094` fail with:

```
level=error ts=2017-10-12T10:03:53.456819948Z caller=notifier.go:445
component=notifier alertmanager=http://localhost:9094/api/v1/alerts
count=1 msg="Error sending alert" err="bad response status 401
Unauthorized"
```

If you change the order to be:

```
alerting:
  alertmanagers:
    - static_configs:
      - targets:
        - localhost:9095
    - basic_auth:
        username: 'prometheus'
        password: 'test123'
      static_configs:
      - targets:
        - localhost:9094
```

It works as expected.

This commit changes the behavour so `ams` is passed to the go routine so
`n.sendOne` uses the appropriate `http.Client` details.

Make the date returned by snapshot script friendly

Deprecate DeduplicateSeriesSet() in favor of NewMergeSeriesSet().

net.Listener converts 0.0.0.0 to :: which fails for hosts where IPv6 is
disabled. This change uses the original listen address parameter instead
of grpcl.Addr().String().

Fixes #3564

Fixes #3568

Signed-off-by: Goutham Veeramachaneni <cs14btech11014@iith.ac.in>

Federation makes use of dedupedSeriesSet to merge SeriesSets for every
query into one output stream. If many match[] arguments are provided,
many dedupedSeriesSet objects will get chained. This has the downside of
causing a potential O(n*k) running time, where n is the number of series
and k the number of match[] arguments.

In the mean time, the storage package provides a mergeSeriesSet that
accomplishes the same with an O(n*log(k)) running time by making use of
a binary heap. Let's just get rid of dedupedSeriesSet and change all
existing callers to use mergeSeriesSet.

testutil: simplify code

Also include filename in all LoadFile errors

Also add mesage to testuitl.NotOk so we can identify failing tests when
using table driven tests.

Add endpoint to cleanup tombstones

Remove obsolete TODO in API code

Signed-off-by: Goutham Veeramachaneni <cs14btech11014@iith.ac.in>

In https://github.com/prometheus/prometheus/pull/3230/files, contexts were
added to the Querier() method instead, and Cortex is fine with that.

Parse the normalized container.PortMappings presented by the Marathon 1.5.x API

Fixes #3465

Signed-off-by: Goutham Veeramachaneni <cs14btech11014@iith.ac.in>

This is not really needed now that we have rule groups
to distinguish rules.

This is currently getting lost, this will soon be in a metric and we
don't want it dropping to 0 on every reload.

Make it clear they're about overall rule groups.

Signed-off-by: Goutham Veeramachaneni <cs14btech11014@iith.ac.in>

Signed-off-by: Goutham Veeramachaneni <cs14btech11014@iith.ac.in>

We already mentioned that regular expressions are RE2 for
[relabeling][0], but left open what the regular expression syntax
anywhere else is.

In the querying examples and reference, make it explicit that _all_
regular expressions are RE2.

[0]: https://prometheus.io/docs/prometheus/latest/configuration/configuration/#relabel_config

10b2e8c6 pulled new TSDB, which uses `math/bits` package introduced in Go 1.9

Signed-off-by: Goutham Veeramachaneni <cs14btech11014@iith.ac.in>

Use the files globbed files and not the files in cfg

Signed-off-by: Goutham Veeramachaneni <cs14btech11014@iith.ac.in>

Signed-off-by: Goutham Veeramachaneni <cs14btech11014@iith.ac.in>

Signed-off-by: Goutham Veeramachaneni <cs14btech11014@iith.ac.in>